feat(holman_wx2_taptimer): add compatible RainPoint model

Issue #3407

custom_components/tuya_local/devices/holman_wx2_taptimer.yaml

@@ -3,6 +3,9 @@ products:
   - id: wfchjk5vc9bysjtk
     manufacturer: Holman
     model: WX2
+  - id: pjnbcfv3bzwg4yyo
+    manufacturer: RainPoint
+    model: TWG004WRF
 entities:
   - entity: valve
     name: Manual 1