feat (inkbird_itc306a_thermostat): add V4 product

Since this device seems to only return 1 dp at a time, the matching will
require cloud flow to match on product id.

Issue #3876

custom_components/tuya_local/devices/inkbird_itc306a_thermostat.yaml

@@ -4,6 +4,9 @@ products:
   - id: wynvjn0ztufzrd0p
     manufacturer: Inkbird
     model: ITC-306A V3.0
+  - id: ziqtatr15jcbblem
+    manufacturer: Inkbird
+    model: ITC-306A V4
 entities:
   - entity: climate
     translation_only_key: thermo_switch