PG10x alarm: make dp 32 optional

Issue #961

custom_components/tuya_local/devices/gautone_pg103_alarm.yaml

@@ -22,6 +22,7 @@ primary_entity:
     - id: 32
       type: string
       name: master_state
+      optional: true
     - id: 36
       type: string
       name: sub_class