Big diff: use lower-case list and dict (#5888)

stdlib/multiprocessing/dummy/__init__.pyi

@@ -2,7 +2,7 @@ import array
 import threading
 import weakref
 from queue import Queue as Queue
-from typing import Any, Callable, Iterable, List, Mapping, Sequence
+from typing import Any, Callable, Iterable, Mapping, Sequence
 
 JoinableQueue = Queue
 Barrier = threading.Barrier
@@ -44,7 +44,7 @@ class Value:
 def Array(typecode: Any, sequence: Sequence[Any], lock: Any = ...) -> array.array[Any]: ...
 def Manager() -> Any: ...
 def Pool(processes: int | None = ..., initializer: Callable[..., Any] | None = ..., initargs: Iterable[Any] = ...) -> Any: ...
-def active_children() -> List[Any]: ...
+def active_children() -> list[Any]: ...
 def current_process() -> threading.Thread: ...
 def freeze_support() -> None: ...
 def shutdown() -> None: ...

stdlib/multiprocessing/dummy/connection.pyi

@@ -1,9 +1,9 @@
 from _typeshed import Self
 from queue import Queue
 from types import TracebackType
-from typing import Any, List, Tuple, Type, Union
+from typing import Any, Tuple, Type, Union
 
-families: List[None]
+families: list[None]
 
 _Address = Union[str, Tuple[str, int]]