Update multiprocessing.pyi for Python3.12 (#10279)

Author: sobolevn

stdlib/multiprocessing/connection.pyi

@@ -52,7 +52,12 @@ class Listener:
         self, exc_type: type[BaseException] | None, exc_value: BaseException | None, exc_tb: types.TracebackType | None
     ) -> None: ...
 
-def deliver_challenge(connection: Connection, authkey: bytes) -> None: ...
+if sys.version_info >= (3, 12):
+    def deliver_challenge(connection: Connection, authkey: bytes, digest_name: str = "sha256") -> None: ...
+
+else:
+    def deliver_challenge(connection: Connection, authkey: bytes) -> None: ...
+
 def answer_challenge(connection: Connection, authkey: bytes) -> None: ...
 def wait(
     object_list: Iterable[Connection | socket.socket | int], timeout: float | None = None

stdlib/multiprocessing/queues.pyi

@@ -22,6 +22,8 @@ class Queue(Generic[_T]):
     def close(self) -> None: ...
     def join_thread(self) -> None: ...
     def cancel_join_thread(self) -> None: ...
+    if sys.version_info >= (3, 12):
+        def __class_getitem__(cls, __item: Any) -> GenericAlias: ...
 
 class JoinableQueue(Queue[_T]):
     def task_done(self) -> None: ...

tests/stubtest_allowlists/py312.txt

@@ -77,8 +77,6 @@ logging.Logger.getChildren
 logging.__all__
 logging.getHandlerByName
 logging.getHandlerNames
-multiprocessing.connection.deliver_challenge
-multiprocessing.queues.Queue.__class_getitem__
 ntpath.__all__
 ntpath.isjunction
 ntpath.splitroot