fix(系统设置): 编辑用户组后操作人会被清空的问题

--bug=1020250 --user=李玉号 【系统设置】用户组与权限-编辑-操作人会被清空
https://www.tapd.cn/55049933/s/1304842

project-management/backend/src/main/java/io/metersphere/service/GroupService.java

@@ -149,6 +149,7 @@ public class GroupService {
         Group group = new Group();
         request.setScopeId(null);
         BeanUtils.copyBean(group, request);
+        group.setCreator(SessionUtils.getUserId());
         group.setUpdateTime(System.currentTimeMillis());
         groupMapper.updateByPrimaryKeySelective(group);
     }

system-setting/backend/src/main/java/io/metersphere/service/GroupService.java

@@ -147,6 +147,7 @@ public class GroupService {
         Group group = new Group();
         request.setScopeId(null);
         BeanUtils.copyBean(group, request);
+        group.setCreator(SessionUtils.getUserId());
         group.setUpdateTime(System.currentTimeMillis());
         groupMapper.updateByPrimaryKeySelective(group);
     }