feat(game-group): 解决分组模块时间格式bug

ruoyi-modules/ruoyi-game-event/src/main/java/org/dromara/system/domain/vo/GameEventGroupVo.java

@@ -79,14 +79,12 @@ public class GameEventGroupVo implements Serializable {
      * 组别比赛开始时间
      */
     @ExcelProperty(value = "组开始时间")
-    @JsonFormat(pattern = "HH:mm")
     private Date beginTime;
 
     /**
      * 组别比赛结束时间
      */
     @ExcelProperty(value = "组结束时间")
-    @JsonFormat(pattern = "HH:mm")
     private Date endTime;
 
     /**