Enable Ruff RET501 (#115031)

* Enable Ruff RET501

* add noqa and type hints

* use Any for fixtures

* Review comments, typing fixes

* Review comments

* fix new occurrences, clean up

* Fix typing

* clean up rebase

* more cleanup

* Remove old occurrences

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Co-authored-by: epenet <6771947+epenet@users.noreply.github.com>

pyproject.toml

@@ -822,7 +822,6 @@ ignore = [
 
     # temporarily disabled
     "RET503",
-    "RET501",
     "TRY301"
 ]