Use ruff instead of black+isort

[AdrienVannson]

Summary

Use Ruff instead of black+isort. This has the following avantages:

• Ruff is much faster than black+isort. In my project, it reduced the compilation time of the proto files by half. It will also make the use in the project more convenient.
• It will allow to greatly simplify how import are added to the output file. Instead of having a lot of code to check which imports need to be added to the generated file, it is possible to add all of them and tell Ruff to remove the useless ones. It will make everything easier and less subject to bugs
• In some cases, the formatting may be better

This was requested in #488 , and I agree it is a good choice.

For now, Ruff is only used as a formatter and not as a linter

Checklist

• If code changes were made then they have been tested.
• This PR fixes an issue.

[AdrienVannson]

Actually, I need to check one last thing before merging

[AdrienVannson]

I pinned the Ruff version in pyproject.toml to avoid having a problem that occurred previously with black+isort: the version of black was updated in the environment, but the old version was still used in the pre-commit... Which used to cause the pre-commit to fail even after running poe format