Use new BinarySensorDeviceClass in eight_sleep (#61610)

Co-authored-by: epenet <epenet@users.noreply.github.com>

homeassistant/components/eight_sleep/binary_sensor.py

@@ -6,7 +6,7 @@ import logging
 from pyeight.eight import EightSleep
 
 from homeassistant.components.binary_sensor import (
-    DEVICE_CLASS_OCCUPANCY,
+    BinarySensorDeviceClass,
     BinarySensorEntity,
 )
 from homeassistant.core import HomeAssistant
@@ -61,7 +61,7 @@ class EightHeatSensor(EightSleepBaseEntity, BinarySensorEntity):
     ) -> None:
         """Initialize the sensor."""
         super().__init__(name, coordinator, eight, side, sensor)
-        self._attr_device_class = DEVICE_CLASS_OCCUPANCY
+        self._attr_device_class = BinarySensorDeviceClass.OCCUPANCY
         assert self._usrobj
         _LOGGER.debug(
             "Presence Sensor: %s, Side: %s, User: %s",