Summary: feat(wdyk_2p63a_energy_meter): use available translation

custom_components/tuya_local/devices/wdyk_2p63a_energy_meter.yaml

@@ -194,7 +194,7 @@ entities:
         mapping:
           - scale: 1000
   - entity: sensor
-    name: Leakage current
+    translation_key: leakage_current
     class: current
     dps:
       - id: 6