Arlec portable AC: use correct unit for timer

custom_components/tuya_local/devices/arlec_pa1123bkha_portable_air_conditioner.yaml

@@ -118,7 +118,7 @@ entities:
       - id: 105
         type: integer
         name: value
-        unit: hour
+        unit: h
         range:
           min: 0
           max: 24