Add rflink binary_sensor allon and alloff commands (#32411)

* added "allon" and "alloff" to the binary_sensor

Ref to the issue: https://github.com/home-assistant/core/issues/32399

* Cosmetic fix

* Fix format

* Update test

Co-authored-by: Erik Montnemery <erik@montnemery.com>

homeassistant/components/rflink/binary_sensor.py

@@ -73,9 +73,9 @@ class RflinkBinarySensor(RflinkDevice, BinarySensorDevice):
     def _handle_event(self, event):
         """Domain specific event handler."""
         command = event["command"]
-        if command == "on":
+        if command in ["on", "allon"]:
             self._state = True
-        elif command == "off":
+        elif command in ["off", "alloff"]:
             self._state = False
 
         if self._state and self._off_delay is not None: