fix (stadlerform_roger_purifier): revert duplication of entity

Device has both a percentage and days left sensor for filter.
One of them needs to be named to avoid duplication.

custom_components/tuya_local/devices/stadlerform_roger_purifier.yaml

@@ -46,7 +46,7 @@ entities:
         name: sensor
         unit: "%"
   - entity: sensor
-    translation_key: filter_life
+    name: Filter remaining
     category: diagnostic
     class: duration
     dps: