Start hexo server with `-s` options do not work properly

### Check List

- [x] I have already read README.
- [x] I have already searched existing issues and they are not help to me.
- [x] I examined error or warning messages and it's difficult to solve.
- [x] I am using the latest version of this repository.
- [x] I am using the [latest](https://github.com/hexojs/hexo/releases) version of Hexo.
- [x] My Node.js is matched the required version.

### Describe the bug

The short options `-s` do not work properly.

### Expected behavior

According to the hexo document, the command `hexo server -s` can used to start a hexo server on static mode, but it does not work, the server still work on watch mode.

### How to reproduce

Use `hexo server -s` command to start a hexo server.

### Screenshots


### Environment information

_No response_

### Additional context

I did some tiny research and printed out the args on `server.js`.
It seems that the `s` arg was taken specially treatment by Hexo.