Update time docstring to include 'hours'

Co-authored-by: Copilot <[email protected]>

Author: tyeth

adafruit_io/adafruit_io.py

@@ -396,7 +396,7 @@ def unsubscribe_from_randomizer(self, randomizer_id: int):
     def unsubscribe_from_time(self, time_type: str):
         """Unsubscribe from Adafruit IO MQTT time topics.
 
-        :param str time_type: Time type to unsubscribe from. Can be 'seconds', 'millis', or 'iso'.
+        :param str time_type: Time type to unsubscribe from, such as 'seconds', 'millis', 'hours', or 'iso'.
         """
         if time_type == "iso":
             self._client.unsubscribe("time/ISO-8601")