Use new enums in mobile_app (#61929)

homeassistant/components/mobile_app/sensor.py

@@ -1,13 +1,11 @@
 """Sensor platform for mobile_app."""
 from __future__ import annotations
 
-from homeassistant.components.sensor import SensorEntity
+from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.const import (
     CONF_NAME,
     CONF_UNIQUE_ID,
     CONF_WEBHOOK_ID,
-    DEVICE_CLASS_DATE,
-    DEVICE_CLASS_TIMESTAMP,
     STATE_UNKNOWN,
 )
 from homeassistant.core import callback
@@ -95,12 +93,12 @@ class MobileAppSensor(MobileAppEntity, SensorEntity):
         if (
             self.device_class
             in (
-                DEVICE_CLASS_DATE,
-                DEVICE_CLASS_TIMESTAMP,
+                SensorDeviceClass.DATE,
+                SensorDeviceClass.TIMESTAMP,
             )
             and (timestamp := dt_util.parse_datetime(state)) is not None
         ):
-            if self.device_class == DEVICE_CLASS_DATE:
+            if self.device_class == SensorDeviceClass.DATE:
                 return timestamp.date()
             return timestamp