Use unit enums in airvisual_pro (#84346)

homeassistant/components/airvisual_pro/sensor.py

@@ -14,7 +14,7 @@ from homeassistant.const import (
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     CONCENTRATION_PARTS_PER_MILLION,
     PERCENTAGE,
-    TEMP_CELSIUS,
+    UnitOfTemperature,
 )
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity import EntityCategory
@@ -87,7 +87,7 @@ SENSOR_DESCRIPTIONS = (
         key=SENSOR_KIND_TEMPERATURE,
         name="Temperature",
         device_class=SensorDeviceClass.TEMPERATURE,
-        native_unit_of_measurement=TEMP_CELSIUS,
+        native_unit_of_measurement=UnitOfTemperature.CELSIUS,
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(