RQ400A gas alarm: fix sensor scale

PR #3261

custom_components/tuya_local/devices/rq400a_gasalarm.yaml

@@ -26,7 +26,7 @@ entities:
           max: 1000
         class: measurement
         mapping:
-          - scale: 1
+          - scale: 10
   - entity: siren
     category: config
     dps: