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

stubs/docutils/docutils/io.pyi

@@ -8,8 +8,7 @@ from _typeshed import (
     Unused,
 )
 from re import Pattern
-from typing import Any, ClassVar
-from typing_extensions import Literal
+from typing import Any, ClassVar, Literal
 
 from docutils import TransformSpec
 

stubs/docutils/docutils/nodes.pyi

@@ -3,8 +3,8 @@ import xml.dom.minidom
 from _typeshed import Incomplete
 from abc import abstractmethod
 from collections.abc import Callable, Generator, Iterable, Iterator, Sequence
-from typing import Any, ClassVar, Protocol, TypeVar, overload
-from typing_extensions import Literal, Self, SupportsIndex
+from typing import Any, ClassVar, Literal, Protocol, SupportsIndex, TypeVar, overload
+from typing_extensions import Self
 
 from docutils.transforms import Transformer
 

stubs/docutils/docutils/parsers/rst/__init__.pyi

@@ -1,6 +1,5 @@
 from _typeshed import Incomplete
-from typing import Any, ClassVar
-from typing_extensions import Literal
+from typing import Any, ClassVar, Literal
 
 from docutils import parsers
 from docutils.parsers.rst import states

stubs/docutils/docutils/utils/__init__.pyi

@@ -2,7 +2,8 @@ import optparse
 from _typeshed import Incomplete
 from builtins import list as _list  # alias to avoid name clashes with fields named list
 from collections.abc import Iterable
-from typing_extensions import Literal, TypeAlias
+from typing import Literal
+from typing_extensions import TypeAlias
 
 from docutils import ApplicationError
 from docutils.io import FileOutput