Contains unnessasary file in release assets

[massongit]

 $ curl --output julia-1.9.3-linux-x86_64.tar.gz https://julialang-s3.julialang.org/bin/linux/x64/1.9/julia-1.9.3-linux-x86_64.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  139M  100  139M    0     0  17.3M      0  0:00:08  0:00:08 --:--:-- 17.3M
$ tar xzf julia-1.9.3-linux-x86_64.tar.gz
$ cd julia-1.9.3/share/julia/stdlib/v1.9/SuiteSparse/.devcontainer/
$ ls
Dockerfile  devcontainer.json

share/julia/stdlib/v1.9/SuiteSparse/.devcontainer directory in julia-1.9.3-linux-x86_64.tar.gz contains unnecessary files Dockerfile and devcontainer.json.
Therefore, I think it is better to delete these files.