python 3.12 support

[FoamyGuy]

The two changes with this PR allow circup to be used under python 3.12 in the following contexts:

• circup CLI usage by the user
• pre-commit usage by developers working on circup.

[dhalbert]

This looks fine, but I tried to test it on an Ubuntu 22.04 system by doing pip3 install . after pulling from your branch, to make sure it was backwards compatible, and could not get the install to work properly. It created an UNKNOWN-2.0.4-... package which wasn't really installed anywhere except for a dist-info. The fix for that is supposedly to update setuptools, which I did, which didn't help.

Do you have any way of testing that it's backward compatible, to, say 22.04?

---

Another thing, which could wait, is the deprecation warnings shown in the CI:
https://github.com/adafruit/circup/actions/runs/9946724203

[FoamyGuy]

I have been able to successfully tested it inside of a ubuntu 22.04 docker container.

To test I used these steps:

• Start a 22.04 ubuntu container with CIRCUITPY drive mounted:

docker run -it -v /media/username/CIRCUITPY/:/media/username/CIRCUITPY:z --entrypoint /bin/bash ubuntu:22.04

• Inside the container:

apt install git
apt install python3 python3-venv
cd ~
python3 -m venv ~/.venv
source ~/.venv/bin/activate
git clone https://github.com/FoamyGuy/circup.git
cd circup
git checkout support_py312
pip install -e .
circup install adafruit_display_text

It found the device and successfully installed display_text and it's dependencies.

[dhalbert]

Great - thanks for testing on 22.04!

[vkottler]

Nice patch, just noting I'm using this forked circup branch until merge+publish as well.