Fix bug: faulty topic

simulator/devs_models/high_bay_warehouse.py

@@ -175,7 +175,7 @@ class HighBayWarehouse(AtomicDEVS):
         code = 2 if active == 1 else 1
 
         message = MqttMessage()
-        message.topic = "f/i/state/vgr"
+        message.topic = "f/i/state/hbw"
         message.payload = {
             "active": active,
             "code": code,