Fix stray ) in comment

Signed-off-by: Mathias L. Baumann <[email protected]>

Author: Marenz

src/frequenz/dispatch/_bg_service.py

@@ -334,7 +334,7 @@ async def _update_dispatch_schedule_and_notify(
             self._remove_scheduled(old_dispatch)
 
             was_running = old_dispatch.started
-            old_dispatch._set_deleted()  # pylint: disable=protected-access)
+            old_dispatch._set_deleted()  # pylint: disable=protected-access
 
             # If the dispatch was running, we need to notify
             if was_running: