Better error message for expired/invalid PAT

```
$ gh codeql list-versions
expected an object but got: string ("https://docs.github.com/rest")
```

I haven't investigated, but perhaps this is making an invalid API request.

---

EDIT: The reason for the error was an expired PAT. Leaving this issue open so we can provide a better error message in this case.

从 `gh codeql list-versions` 入口开始，使用已过期或无效的 PAT 重现该命令。跟踪失败响应的处理方式，并将完成定义为显示清晰的身份验证错误，而不是报告的 object-versus-string 消息；该 issue 未指定测试或源文件。

由索引模型根据 Issue 内容生成。