feat(kaisai_proheat_airconditioner): add ionizer switch

Issue #6280

custom_components/tuya_local/devices/kaisai_proheat_airconditioner.yaml

@@ -208,3 +208,11 @@ entities:
         name: sensor
         type: boolean
         optional: true
+  - entity: switch
+    translation_key: ionizer
+    category: config
+    dps:
+      - id: 26
+        type: boolean
+        optional: true
+        name: switch