Fix _thread.interrupt_main for 3.10+ (#12586)

stdlib/_thread.pyi

@@ -1,3 +1,4 @@
+import signal
 import sys
 from _typeshed import structseq
 from collections.abc import Callable
@@ -25,7 +26,13 @@ class LockType:
 def start_new_thread(function: Callable[[Unpack[_Ts]], object], args: tuple[Unpack[_Ts]], /) -> int: ...
 @overload
 def start_new_thread(function: Callable[..., object], args: tuple[Any, ...], kwargs: dict[str, Any], /) -> int: ...
-def interrupt_main() -> None: ...
+
+if sys.version_info >= (3, 10):
+    def interrupt_main(signum: signal.Signals = ..., /) -> None: ...
+
+else:
+    def interrupt_main() -> None: ...
+
 def exit() -> NoReturn: ...
 def allocate_lock() -> LockType: ...
 def get_ident() -> int: ...