replace device_state_attributes with extra_state_attributes (#26)

closes #25

Author: pinkywafer

custom_components/calendarific/sensor.py

@@ -102,7 +102,7 @@ def state(self):
         return self._state
 
     @property 
-    def device_state_attributes(self):
+    def extra_state_attributes(self):
         """Return the state attributes."""
         return {
             ATTR_DATE: self._attr_date,

hacs.json

@@ -4,6 +4,6 @@
   "zip_release": true,
   "filename": "calendarific.zip",
   "domains": ["calendarific", "sensor"],
-  "homeassistant": "0.109.0",
+  "homeassistant": "2021.12.0",
   "iot_class": "Cloud Polling"
 }