move filter services to diagnostics

custom_components/tuya_local/devices/cleanair_605b_humidifier.yaml

@@ -106,12 +106,14 @@ secondary_entities:
         name: switch
   - entity: button
     name: Filter reset
+    category: diagnostic
     dps:
       - id: 28
         type: boolean
         name: button
   - entity: sensor
     name: Filter life
+    category: diagnostic
     dps:
       - id: 33
         type: integer