Summary: pj1103: set units for energy sensor

Issue #395 #issuecomment-1427799579 point 1

custom_components/tuya_local/devices/pj1103_clamp_meter.yaml

@@ -84,6 +84,7 @@ secondary_entities:
         type: integer
         name: sensor
         optional: true
+        unit: kWh
         mapping:
           - dps_val: null
           - scale: 100