fix (atorch_dt20_energymeter): make data refresh interval optional

Issue #4092

custom_components/tuya_local/devices/atorch_dt20_energymeter.yaml

@@ -241,6 +241,7 @@ entities:
     dps:
       - id: 125
         type: integer
+        optional: true
         name: value
         unit: s
         range: