PLW0211: @staticmethod ; def __new__(cls, ...) disagrees with the Python docs

[cclauss]

ruff check --select=PLW0211 - <<EOF
class TestNew:
    @staticmethod
    def __new__(cls, title, *args, **kwargs):
        print(cls)
EOF

-:3:17: PLW0211 First argument of a static method should not be named cls

This contradicts https://docs.python.org/3/reference/datamodel.html#basic-customization which uses cls and states that __new__() is a static method.

PEP20 statement Explicit is better than implicit. suggests that @staticmethod should be allowed in this code.

[AlexWaygood]

I think that's a somewhat extreme reading of PEP20! But yes, we should make an exception for __new__ here, which is obviously very special