Add @type_check_only to stub-only private classes in stdlib (#14512)

stdlib/logging/handlers.pyi

@@ -9,7 +9,7 @@ from re import Pattern
 from socket import SocketKind, socket
 from threading import Thread
 from types import TracebackType
-from typing import Any, ClassVar, Final, Protocol, TypeVar
+from typing import Any, ClassVar, Final, Protocol, TypeVar, type_check_only
 from typing_extensions import Self
 
 _T = TypeVar("_T")
@@ -225,6 +225,7 @@ class HTTPHandler(Handler):
     def mapLogRecord(self, record: LogRecord) -> dict[str, Any]: ...
     def getConnection(self, host: str, secure: bool) -> http.client.HTTPConnection: ...  # undocumented
 
+@type_check_only
 class _QueueLike(Protocol[_T]):
     def get(self) -> _T: ...
     def put_nowait(self, item: _T, /) -> None: ...