Please answer some questions before submitting your issue. Thanks!

### Which version of XXL-JOB do you using?
![image](https://github.com/xuxueli/xxl-job/assets/31686383/af96968a-833a-4099-b0df-d73530b73ffe)
最新版

### Expected behavior
在localhost:9969/xxl-job-admin/jobinfo页面修改任务信息，点提交后发现 post 415 错误

### Actual behavior

### Steps to reproduce the behavior

### Other information
修改Job出现415异常，如图所属
This is a GitHub Issue
repo:xxl-job
owner:xuxueli
Title : 修改Job出现415异常，如图所属
Issue date:

--- start body ---
Please answer some questions before submitting your issue. Thanks!

### Which version of XXL-JOB do you using?
![image](https://github.com/xuxueli/xxl-job/assets/31686383/af96968a-833a-4099-b0df-d73530b73ffe)
最新版

### Expected behavior
在localhost:9969/xxl-job-admin/jobinfo页面修改任务信息，点提交后发现 post 415 错误

### Actual behavior

### Steps to reproduce the behavior

### Other information
--- end body ---
