Etop CH7100: use correct dp id for humidity sensor.

Original config copied the value rather than the id from issue #305

custom_components/tuya_local/devices/etop_ch7100_thermostat.yaml

@@ -154,7 +154,7 @@ secondary_entities:
     name: Current humidity
     class: humidity
     dps:
-      - id: 49
+      - id: 34
         type: integer
         name: sensor
         unit: "%"