Jan Bouwhuis ee21bc5d7f
Allow MQTT device_class or state_class to be set as None (#85106)
* Allow MQTT device_class to be set as `None`

* Add test

* Also allow sensor state_class to be `None`
2023-01-04 15:21:07 +01:00
..
2023-01-04 00:22:58 +00:00