Same request and reasoning as #3910

Python 3.12 will introduce the override decorator. It is already backported by typing_extensions.

Overridden method names are out of the dev's control when subclassing an external library. An example of this are Enum's _generate_next_value_. Ruff could understand that there's nothing the dev can do about the names if a method is marked with @override (and it'll still raise anyway on the base class if it's internal).