Fix for leading zero mismatch in fabric check (#544)

Author: marcelveldt

matter_server/server/device_controller.py

@@ -1168,7 +1168,7 @@ def _on_mdns_service_state_change(
             return
         if service_type == MDNS_TYPE_OPERATIONAL_NODE:
             name = name.lower()
-            if not name.startswith(self.fabric_id_hex):
+            if self.fabric_id_hex not in name:
                 # filter out messages that are not for our fabric
                 return
             LOGGER.debug("Received %s MDNS event for %s", state_change, name)