Craigslist route is empty

### Routes

NOROUTE, see also later comments.

### Full routes

NOROUTE, see also later comments.

### Related documentation

NOROUTE, see also later comments.

### What is expected?

Be able to fetch updates.

### What is actually happening?

Empty route (not sure what that means). I read the /craigslist/search.js code, the formatting of the origin url seems fine and the issue might be in the rsshub's part.

### Deployment information

RSSHub demo (https://rsshub.app)

### Deployment information (for self-hosted)

docker compose on: arhc linux, node v18.18.2, Docker version 24.0.6, build ed223bc820

### Additional info

```shell
Using the url in doc ([route](https://rsshub.app/craigslist/sfbay/sso?query=folding+bike&sort=rel), [real](https://sfbay.craigslist.org/search/sso?query=folding+bike&sort=rel)) and rsshub's official site:

Route requested: /craigslist/sfbay/sso

Error message: this route is empty, please check the original site or [create an issue](https://github.com/DIYgod/RSSHub/issues/new/choose)

Helpful Information to provide when opening issue:
Path: /craigslist/sfbay/sso
Node version: v18.18.2
Git Hash: 70dc17d
```

Same goes for a self hosted instance:

```
Route requested: /craigslist/boston/sso

Error message: this route is empty, please check the original site or [create an issue](https://github.com/DIYgod/RSSHub/issues/new/choose)

Helpful Information to provide when opening issue:
Path: /craigslist/boston/sso
Node version: v18.18.2
Git Hash: 4356fad
```
```

### This is not a duplicated issue

- [X] I have searched [existing issues](https://github.com/DIYgod/RSSHub/issues) to ensure this bug has not already been reported