Fix dangling task for mysensors (#88290)

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

homeassistant/components/mysensors/gateway.py

@@ -116,7 +116,7 @@ async def try_connect(
         finally:
             if connect_task is not None and not connect_task.done():
                 connect_task.cancel()
-            asyncio.create_task(gateway.stop())
+            await gateway.stop()
     except OSError as err:
         _LOGGER.info("Try gateway connect failed with exception", exc_info=err)
         return False