Add outside temperature sensor to MELCloud Air-to-Air devices (#150722)

Author: Sander0542

homeassistant/components/melcloud/sensor.py

@@ -49,6 +49,15 @@ class MelcloudSensorEntityDescription(SensorEntityDescription):
         value_fn=lambda x: x.device.total_energy_consumed,
         enabled=lambda x: x.device.has_energy_consumed_meter,
     ),
+    MelcloudSensorEntityDescription(
+        key="outside_temperature",
+        translation_key="outside_temperature",
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
+        device_class=SensorDeviceClass.TEMPERATURE,
+        state_class=SensorStateClass.MEASUREMENT,
+        value_fn=lambda x: x.device.outdoor_temperature,
+        enabled=lambda x: x.device.has_outdoor_temperature,
+    ),
 )
 ATW_SENSORS: tuple[MelcloudSensorEntityDescription, ...] = (
     MelcloudSensorEntityDescription(