修改获取无人机信息代码

tuoheng-admin/src/main/java/com/tuoheng/admin/service/airport/drone/QueryDroneDataService.java

         List<ThInspection> inspectionList = inspectionMapper.selectListByMissionId(map);
         if (CollectionUtil.isEmpty(inspectionList)) {
             log.info("获取无人机数据信息, 数据为空");
-            JsonResult.success("数据为空");
+            return JsonResult.success("数据为空");
         }
         List<DroneDataVo> droneDataVoList = InspectionConverMapper.INSTANCE.fromInspectionListToDroneDataVoList(inspectionList);
         return JsonResult.success(droneDataVoList);