sys.monitoring.restart_events() is no longer undocumented (#10938)

Following python/cpython@3f84a19

Author: AlexWaygood

stdlib/sys/_monitoring.pyi

@@ -44,7 +44,7 @@ def get_events(__tool_id: int) -> int: ...
 def set_events(__tool_id: int, __event_set: int) -> None: ...
 def get_local_events(__tool_id: int, __code: CodeType) -> int: ...
 def set_local_events(__tool_id: int, __code: CodeType, __event_set: int) -> int: ...
-def restart_events() -> None: ...  # undocumented
+def restart_events() -> None: ...
 
 DISABLE: object
 MISSING: object