fix (nine_ev_charger): limit current setting to 32A

This is documented as a 32A charger, so it does not make sense to allow
setting all the way up to 80A.

custom_components/tuya_local/devices/nine_ev_charger.yaml

@@ -45,7 +45,7 @@ entities:
         optional: true
         range:
           min: 6
-          max: 80
+          max: 32
   - entity: sensor
     class: power
     category: diagnostic