Update typing_extensions imports in third-party stubs (#11245)

stubs/vobject/vobject/base.pyi

@@ -1,8 +1,7 @@
 import logging
 from _typeshed import Incomplete, SupportsWrite
 from collections.abc import Iterable, Iterator
-from typing import Any, TypeVar, overload
-from typing_extensions import Literal
+from typing import Any, Literal, TypeVar, overload
 
 logger: logging.Logger
 DEBUG: bool