Ran autofixes for missing-return-type-special-method (ANN204) with ignore-fully-untyped = false

[Avasam]

I set [lint.flake8-annotations] ignore-fully-untyped = false then ran ruff check --select=ANN204 --fix --unsafe-fixes

Summary of changes

Step 6.3 of #2345 (comment)
Some slight overlaps with #4744

Pull Request Checklist

• Changes have tests (this adds static tests)
• News fragment added in newsfragments/. (not user facing)
  (See documentation for details)

[abravalheri]

Thank you very much @Avasam and sorry for the delay.

I am not sure what will be the policy regarding modifying the pkg_resource files now that it has been scheduled for removal and that Jason has spent some time exporting the commit history to the pypa/pkg_resources repo. I also don't know if there are plans of keep updating that other repo or if it was a simple experiment.

Maybe @jaraco can clarify what is his preference.

[Avasam]

Oh yeah this PR was created before #5007

[Avasam]

I've excluded pkg_resources from this PR.

[jaraco]

For future reference, avoid changing pkg_resources. I want to avoid committing anything here that we'd miss there, assuming we decide to use it. But if it's convenient or it happens that we change something here, it's no big deal. Don't sweat it either way.

[Avasam]

When it comes to checkers (Ruff, mypy, pyright), the pkg_resources folder can just be ignored, even on a per-rule basis. Makes it easy to keep automatically enforcing project practices without touching pkg_resources.