Remove more Python 3.8 cruft (#13787)

stdlib/typing_extensions.pyi

@@ -4,59 +4,60 @@ import sys
 import typing
 from _collections_abc import dict_items, dict_keys, dict_values
 from _typeshed import IdentityFunction, Incomplete, Unused
+from collections.abc import (
+    AsyncGenerator as AsyncGenerator,
+    AsyncIterable as AsyncIterable,
+    AsyncIterator as AsyncIterator,
+    Awaitable as Awaitable,
+    Collection as Collection,
+    Container as Container,
+    Coroutine as Coroutine,
+    Generator as Generator,
+    Hashable as Hashable,
+    ItemsView as ItemsView,
+    Iterable as Iterable,
+    Iterator as Iterator,
+    KeysView as KeysView,
+    Mapping as Mapping,
+    MappingView as MappingView,
+    MutableMapping as MutableMapping,
+    MutableSequence as MutableSequence,
+    MutableSet as MutableSet,
+    Reversible as Reversible,
+    Sequence as Sequence,
+    Sized as Sized,
+    ValuesView as ValuesView,
+)
 from contextlib import AbstractAsyncContextManager as AsyncContextManager, AbstractContextManager as ContextManager
+from re import Match as Match, Pattern as Pattern
 from types import GenericAlias, ModuleType
-from typing import (  # noqa: Y022,Y037,Y038,Y039
+from typing import (  # noqa: Y022,Y037,Y038,Y039,UP035
     IO as IO,
     TYPE_CHECKING as TYPE_CHECKING,
     AbstractSet as AbstractSet,
     Any as Any,
     AnyStr as AnyStr,
-    AsyncGenerator as AsyncGenerator,
-    AsyncIterable as AsyncIterable,
-    AsyncIterator as AsyncIterator,
-    Awaitable as Awaitable,
     BinaryIO as BinaryIO,
     Callable as Callable,
     ChainMap as ChainMap,
     ClassVar as ClassVar,
-    Collection as Collection,
-    Container as Container,
-    Coroutine as Coroutine,
     Counter as Counter,
     DefaultDict as DefaultDict,
     Deque as Deque,
     Dict as Dict,
     ForwardRef as ForwardRef,
     FrozenSet as FrozenSet,
-    Generator as Generator,
     Generic as Generic,
-    Hashable as Hashable,
-    ItemsView as ItemsView,
-    Iterable as Iterable,
-    Iterator as Iterator,
-    KeysView as KeysView,
     List as List,
-    Mapping as Mapping,
-    MappingView as MappingView,
-    Match as Match,
-    MutableMapping as MutableMapping,
-    MutableSequence as MutableSequence,
-    MutableSet as MutableSet,
     NoReturn as NoReturn,
     Optional as Optional,
-    Pattern as Pattern,
-    Reversible as Reversible,
-    Sequence as Sequence,
     Set as Set,
-    Sized as Sized,
     Text as Text,
     TextIO as TextIO,
     Tuple as Tuple,
     Type as Type,
     TypedDict as TypedDict,
     Union as Union,
-    ValuesView as ValuesView,
     _Alias,
     cast as cast,
     no_type_check as no_type_check,