feat(rgbcw_lightbulb): add compatible product

Issue #5746

custom_components/tuya_local/devices/rgbcw_lightbulb.yaml

@@ -61,6 +61,9 @@ products:
   - id: keypymhxrj35tnqj
     manufacturer: Positivo
     model: PLW91
+  - id: key8u54q9dtru5jw
+    manufacturer: Havells
+    model: TW+RGB
 entities:
   - entity: light
     dps: