fix(eshico_hct622_watertimer): fix icon definition

custom_components/tuya_local/devices/eshico_hct622_watertimer.yaml

@@ -57,7 +57,7 @@ entities:
   - entity: switch
     name: Use weather
     category: config
-    mdi: "mdi:weather-cloudy"
+    icon: "mdi:weather-cloudy"
     dps:
       - id: 43
         type: boolean