Update makeskyblue_mppt_charger.yaml

Mode_3 Constant voltage

custom_components/tuya_local/devices/makeskyblue_mppt_charger.yaml

@@ -18,7 +18,7 @@ entities:
           - dps_val: mode_2
             value: mode_2
           - dps_val: mode_3
-            value: mode_3
+            value: Constant voltage
           - dps_val: mode_4
             value: MPPT
           - dps_val: mode_5