fix(vevor_ev_charger): correct typo in dps_val mapping key

custom_components/tuya_local/devices/vevor_ev_charger.yaml

@@ -151,7 +151,7 @@ entities:
         mapping:
           - dps_val: controlpi_12v
             value: Standby
-          - dps_val: controlpi_12v_pwn
+          - dps_val: controlpi_12v_pwm
             value: Communication initialising
           - dps_val: controlpi_9v
             value: Vehicle detected