Fix Cancel Timer Functionality

custom_components/tuya_local/devices/cecotec_readywarm_8400.yaml

@@ -67,8 +67,8 @@ secondary_entities:
         name: option
         type: string
         mapping:
-          - dps_val: "cancel"
-            value: cancel
+          - dps_val: "0h"
+            value: Cancel
           - dps_val: "1h"
             value: "1h"
           - dps_val: "2h"