asyncio: updates for 3.11 (#7844)

CPython changes:

- https://github.com/python/cpython/commit/13c10bfb777483c7b02877aab029345a056b809c
- https://github.com/python/cpython/commit/9523c0d84f351a610dc651b234461eb015fa3b82
- https://github.com/python/cpython/commit/9f04ee569cebb8b4c6f04bea95d91a19c5403806
- https://github.com/python/cpython/commit/d03acd7270d66ddb8e987f9743405147ecc15087
- https://github.com/python/cpython/commit/195a46d6ffd4cec6c5fb69c5890f8b1758ac91ca

Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

stdlib/asyncio/runners.pyi

@@ -1,11 +1,28 @@
 import sys
-from collections.abc import Awaitable
-from typing import TypeVar
+from _typeshed import Self
+from collections.abc import Callable, Coroutine
+from contextvars import Context
+from typing import Any, TypeVar
 
-__all__ = ("run",)
+from .events import AbstractEventLoop
+
+if sys.version_info >= (3, 11):
+    __all__ = ("Runner", "run")
+else:
+    __all__ = ("run",)
 _T = TypeVar("_T")
+
+if sys.version_info >= (3, 11):
+    class Runner:
+        def __init__(self, *, debug: bool | None = ..., loop_factory: Callable[[], AbstractEventLoop] | None = ...) -> None: ...
+        def __enter__(self: Self) -> Self: ...
+        def __exit__(self, exc_type: object, exc_val: object, exc_tb: object) -> None: ...
+        def close(self) -> None: ...
+        def get_loop(self) -> AbstractEventLoop: ...
+        def run(self, coro: Coroutine[Any, Any, _T], *, context: Context | None = ...) -> _T: ...
+
 if sys.version_info >= (3, 8):
-    def run(main: Awaitable[_T], *, debug: bool | None = ...) -> _T: ...
+    def run(main: Coroutine[Any, Any, _T], *, debug: bool | None = ...) -> _T: ...
 
 else:
-    def run(main: Awaitable[_T], *, debug: bool = ...) -> _T: ...
+    def run(main: Coroutine[Any, Any, _T], *, debug: bool = ...) -> _T: ...