Update puppy_kitty_pet_feeder.yaml

Changes from review:
 - simplify mapping for Feeding sensor
 - add a raw attribute to Feeding sensor, in case the user wants to differentiate "done" from "standby", or a missing dp.

custom_components/tuya_local/devices/puppy_kitty_pet_feeder.yaml

@@ -58,10 +58,7 @@ secondary_entities:
         mapping:
           - dps_val: feeding
             value: true
-          - dps_val: standby
-            value: false
-          - dps_val: done
-            value: false
-          - dps_val: null
-            value: null
           - value: false
+      - id: 4
+        type: string
+        name: raw