Adding camera to tracked_object_update

Make it easier to get the camera name in the tracked_object_update

frigate/comms/dispatcher.py

@@ -143,6 +143,7 @@ class Dispatcher:
                         "type": TrackedObjectUpdateTypesEnum.description,
                         "id": event.id,
                         "description": event.data["description"],
+                        "camera": event.camera,
                     }
                 ),
             )