fix: typo in cleanup

uppaal2jetracer/jetracerros2/jetracerros2/turn_controller.py

@@ -74,7 +74,7 @@ class TurnActionClientAsync(Node):
         This method should only be called after the turn action has finished!
         """
 
-        self.status = GoalStatus.STATUS_UNKNOWN
+        self._status = GoalStatus.STATUS_UNKNOWN
 
     def send_turn_goal_async(self, theta: float):
         """
@@ -155,7 +155,6 @@ class TurnController:
         Stop the JetRacer.
         """
         self._turn_action_client.cancel_turn_goal_async()
-        self._turn_action_client.cleanup()
 
     def shutdown(self):
         """