git_ruff: Implement additional output formats

[SwooshyCueb]

At present, git_ruff.py generates output in Github Action workflow format. While this is great for using in GHA workflows, it's not super easy to read when running the script manually. It would be a good idea to add the capability to format output in more readable way, such as how clang and gcc print warnings and errors. Additionally, it could be useful to support other output formats, should this script ever be used in a different CI environment.