update data every 30 min instead of 5 min for test

custom_components/deltadore_tydom/hub.py

@@ -311,4 +311,4 @@ async def refresh_data_5m(self) -> None:
         """Periodically refresh data for devices which don't do push."""
         while True:
             await self._tydom_client.poll_devices_data_5m()
-            await asyncio.sleep(300)
+            await asyncio.sleep(1800)