Mark various dunder methods as positional-only in the stdlib (#14528)

stdlib/importlib/metadata/__init__.pyi

@@ -89,8 +89,8 @@ class EntryPoint(_EntryPointBase):
         ) -> bool: ...  # undocumented
 
     def __hash__(self) -> int: ...
-    def __eq__(self, other: object) -> bool: ...
     if sys.version_info >= (3, 11):
+        def __eq__(self, other: object) -> bool: ...
         def __lt__(self, other: object) -> bool: ...
     if sys.version_info < (3, 12):
         def __iter__(self) -> Iterator[Any]: ...  # result of iter((str, Self)), really