fix:微信公众号用户关注则创建新用户

snowy-plugin/snowy-plugin-coldchain/src/main/java/vip/xiaonuo/coldchain/modular/alarmuser/service/impl/AlarmUserServiceImpl.java

@@ -270,7 +270,7 @@ public class AlarmUserServiceImpl extends ServiceImpl<AlarmUserMapper, AlarmUser
             AlarmUser alarmUser = new AlarmUser();
             alarmUser.setOpenId(openid);
             alarmUser.setSubscribed(AlarmUserEnum.SUBSCRIBE.getValue());
-            SysUser sysUser = createSysUser(alarmUser, null, null);
+            SysUser sysUser = createSysUser(alarmUser, null, "");
 
             alarmUser.setUserId(sysUser.getId());
             alarmUser.setId(IdWorker.getIdStr());