fix(soleusair_ahu2000l3_dehumidifier): use available translation

custom_components/tuya_local/devices/soleusair_ahu2000l3_humidifier.yaml

@@ -59,7 +59,7 @@ entities:
         type: boolean
         name: switch
   - entity: sensor
-    name: Water level
+    translation_key: water_level
     dps:
       - id: 17
         type: integer