Xoca meter: rename meter_id attribute

Was not staged for previous commit.

custom_components/tuya_local/devices/xoca_dac2121c_energy_meter.yaml

@@ -20,7 +20,7 @@ primary_entity:
       optional: true
     - id: 18
       type: string
-      name: sensor
+      name: meter_id
       optional: true
 secondary_entities:
   - entity: sensor