Adjust range of new Kogan heater.

Interestingly the range seems to differ from both the webpage and the manual.

custom_components/tuya_local/devices/kogan_kawfhtp_heater.yaml

@@ -15,8 +15,8 @@ primary_entity:
     - id: 3
       type: integer
       range:
-        min: 15
-        max: 35
+        min: 5
+        max: 40
       name: temperature
     - id: 4
       type: integer