Import from collections.abc wherever possible (#7635)

stdlib/http/cookiejar.pyi

@@ -1,7 +1,8 @@
 import sys
 from _typeshed import StrPath
+from collections.abc import Iterable, Iterator, Sequence
 from http.client import HTTPResponse
-from typing import ClassVar, Iterable, Iterator, Pattern, Sequence, TypeVar, overload
+from typing import ClassVar, Pattern, TypeVar, overload
 from urllib.request import Request
 
 __all__ = [