Update typing_extensions imports in stdlib (#11244)

Co-authored-by: AlexWaygood <alex.waygood@gmail.com>

stdlib/pathlib.pyi

@@ -14,8 +14,8 @@ from collections.abc import Callable, Generator, Iterator, Sequence
 from io import BufferedRandom, BufferedReader, BufferedWriter, FileIO, TextIOWrapper
 from os import PathLike, stat_result
 from types import TracebackType
-from typing import IO, Any, BinaryIO, overload
-from typing_extensions import Literal, Self
+from typing import IO, Any, BinaryIO, Literal, overload
+from typing_extensions import Self
 
 if sys.version_info >= (3, 9):
     from types import GenericAlias