Import Match and Pattern from re, not typing (#8277)

stdlib/imaplib.pyi

@@ -4,10 +4,11 @@ import time
 from _typeshed import Self
 from builtins import list as _list  # conflicts with a method named "list"
 from collections.abc import Callable
+from re import Pattern
 from socket import socket as _socket
 from ssl import SSLContext, SSLSocket
 from types import TracebackType
-from typing import IO, Any, Pattern
+from typing import IO, Any
 from typing_extensions import Literal, TypeAlias
 
 __all__ = ["IMAP4", "IMAP4_stream", "Internaldate2tuple", "Int2AP", "ParseFlags", "Time2Internaldate", "IMAP4_SSL"]