fix: docker build broke on buster. use bookworm

[jealouscloud]

$ docker compose build
WARN[0000] /home/noah/src/work/opencve-docker/docker-compose.yml: the attribute `version` is obsolete, it will be ignored, please remove it to avoid potential confusion 
WARN[0000] Docker Compose is configured to build using Bake, but buildx isn't installed 
[+] Building 6.6s (7/16)                                                                                                                                                                                                                                docker:default
 => [webserver internal] load build definition from Dockerfile                                                                                                                                                                                                    0.1s
 => => transferring dockerfile: 1.14kB                                                                                                                                                                                                                            0.0s
 => WARN: FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 1)                                                                                                                                                                                    0.1s
 => WARN: FromAsCasing: 'as' and 'FROM' keywords' casing do not match (line 4)                                                                                                                                                                                    0.1s
 => [webserver internal] load metadata for docker.io/library/python:3.8-slim-buster                                                                                                                                                                               0.9s
 => [webserver internal] load .dockerignore                                                                                                                                                                                                                       0.1s
 => => transferring context: 2B                                                                                                                                                                                                                                   0.0s
 => [webserver base 1/1] FROM docker.io/library/python:3.8-slim-buster@sha256:8799b0564103a9f36cfb8a8e1c562e11a9a6f2e3bb214e2adc23982b36a04511                                                                                                                    4.6s
 => => resolve docker.io/library/python:3.8-slim-buster@sha256:8799b0564103a9f36cfb8a8e1c562e11a9a6f2e3bb214e2adc23982b36a04511                                                                                                                                   0.0s
 => => sha256:addd6962740ab9fd79a788945daa24348c11adcec97d47a647e0a61c86cc9f60 6.87kB / 6.87kB                                                                                                                                                                    0.0s
 => => sha256:8b91b88d557765cd8c6802668755a3f6dc4337b6ce15a17e4857139e5fc964f3 27.14MB / 27.14MB                                                                                                                                                                  1.1s
 => => sha256:8f777578c172d018077d3dc22d6654911fff60066097943fe8c4697ecf8aac35 12.89MB / 12.89MB                                                                                                                                                                  0.9s
 => => sha256:8799b0564103a9f36cfb8a8e1c562e11a9a6f2e3bb214e2adc23982b36a04511 988B / 988B                                                                                                                                                                        0.0s
 => => sha256:90834dba6381dfc3957573dc7a3e6c5c8ed255cf60079329a6da2b5e6d4257b8 1.37kB / 1.37kB                                                                                                                                                                    0.0s
 => => sha256:824416e234237961c9c5d4f41dfe5b295a3c35a671ee52889bfb08d8e257ec4c 2.78MB / 2.78MB                                                                                                                                                                    0.7s
 => => sha256:cbfea27109a8b1136059a7973ccb8243889faf162ebc173a05909dcb0bec03c9 244B / 244B                                                                                                                                                                        0.9s
 => => sha256:276dfcf5deffff3c5d540a8e0d9a18656a4c03637a8b4f4eec1f4a147799c901 3.14MB / 3.14MB                                                                                                                                                                    1.2s
 => => extracting sha256:8b91b88d557765cd8c6802668755a3f6dc4337b6ce15a17e4857139e5fc964f3                                                                                                                                                                         1.6s
 => => extracting sha256:824416e234237961c9c5d4f41dfe5b295a3c35a671ee52889bfb08d8e257ec4c                                                                                                                                                                         0.2s
 => => extracting sha256:8f777578c172d018077d3dc22d6654911fff60066097943fe8c4697ecf8aac35                                                                                                                                                                         0.6s
 => => extracting sha256:cbfea27109a8b1136059a7973ccb8243889faf162ebc173a05909dcb0bec03c9                                                                                                                                                                         0.0s
 => => extracting sha256:276dfcf5deffff3c5d540a8e0d9a18656a4c03637a8b4f4eec1f4a147799c901                                                                                                                                                                         0.3s
 => [webserver internal] load build context                                                                                                                                                                                                                       0.1s
 => => transferring context: 505B                                                                                                                                                                                                                                 0.0s
 => ERROR [webserver stage-2 1/3] RUN apt-get update && apt-get upgrade -y     && apt-get clean     && rm -rf /var/lib/apt/lists/*                                                                                                                                0.9s
 => ERROR [webserver builder 1/8] RUN apt-get update && apt-get upgrade -y && apt-get install -y     git     && rm -rf /var/lib/apt/lists/*                                                                                                                       0.8s
------                                                                                                                                                                                                                                                                 
 > [webserver stage-2 1/3] RUN apt-get update && apt-get upgrade -y     && apt-get clean     && rm -rf /var/lib/apt/lists/*:                                                                                                                                           
0.648 Ign:1 http://deb.debian.org/debian buster InRelease                                                                                                                                                                                                              
0.673 Ign:2 http://deb.debian.org/debian-security buster/updates InRelease                                                                                                                                                                                             
0.723 Ign:3 http://deb.debian.org/debian buster-updates InRelease                                                                                                                                                                                                      
0.750 Err:4 http://deb.debian.org/debian buster Release                                                                                                                                                                                                                
0.750   404  Not Found [IP: 151.101.194.132 80]                                                                                                                                                                                                                        
0.775 Err:5 http://deb.debian.org/debian-security buster/updates Release                                                                                                                                                                                               
0.775   404  Not Found [IP: 151.101.194.132 80]                                                                                                                                                                                                                        
0.805 Err:6 http://deb.debian.org/debian buster-updates Release
0.805   404  Not Found [IP: 151.101.194.132 80]
0.809 Reading package lists...
0.816 E: The repository 'http://deb.debian.org/debian buster Release' does not have a Release file.
0.816 E: The repository 'http://deb.debian.org/debian-security buster/updates Release' does not have a Release file.
0.816 E: The repository 'http://deb.debian.org/debian buster-updates Release' does not have a Release file.
------
------
 > [webserver builder 1/8] RUN apt-get update && apt-get upgrade -y && apt-get install -y     git     && rm -rf /var/lib/apt/lists/*:
0.640 Ign:1 http://deb.debian.org/debian buster InRelease
0.665 Ign:2 http://deb.debian.org/debian-security buster/updates InRelease
0.693 Ign:3 http://deb.debian.org/debian buster-updates InRelease
0.718 Err:4 http://deb.debian.org/debian buster Release
0.718   404  Not Found [IP: 151.101.2.132 80]
0.742 Err:5 http://deb.debian.org/debian-security buster/updates Release
0.742   404  Not Found [IP: 151.101.2.132 80]
0.771 Err:6 http://deb.debian.org/debian buster-updates Release
0.771   404  Not Found [IP: 151.101.2.132 80]
0.774 Reading package lists...
0.783 E: The repository 'http://deb.debian.org/debian buster Release' does not have a Release file.
0.783 E: The repository 'http://deb.debian.org/debian-security buster/updates Release' does not have a Release file.
0.783 E: The repository 'http://deb.debian.org/debian buster-updates Release' does not have a Release file.
------
failed to solve: process "/bin/sh -c apt-get update && apt-get upgrade -y && apt-get install -y     git     && rm -rf /var/lib/apt/lists/*" did not complete successfully: exit code: 100

This is the current state of the repo.

The included change just bumps up to bookworm which builds successfully.