修改无人机信息电量单位

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/inspection/query/QueryAirportMsgByIdService.java

                 //实时电压值大于现在电压最小值
                 double vol = (temp - Umin) / (Umax - Umin);
                 String percent = CommonNumberTypeUtils.getPercentFormat(vol, Integer.MAX_VALUE, 2);
-                vo.setVoltage(percent + "%");
+                vo.setVoltage(percent);
             }else {
                 vo.setVoltage(0 + "%");
             }