[BUG]: return errors when using requests_get() for /repos/{owner}/{repo}/pulls/{index}.{difftype}

[weixinrui]

When using requests_get() method to request /repos/{owner}/{repo}/pulls/{index}.{difftype}, the method raises JSONDecodeError("Expecting value", s, err.value) from None exception. I think the cause is that the response body of this Gitea API returns text file rather than a dict.

[Langenfeld]

Did you add some wrapper code to get diffs of something? I added your pull request, but am missing code that actually uses this functionality.

[weixinrui]

I used the functionality in my own code, not in the wrapper.