Support state_reason in IssuesService.Edit

[parkr]

I would like to be able to use the API to close an issue with a reason why like you can in the UI (https://github.blog/changelog/2022-05-19-the-new-github-issues-may-19th-update/ , https://github.blog/changelog/2022-03-10-the-new-github-issues-march-10th-update/ ). I looked at the Issues API documentation and couldn't find reference to these closing reasons (https://docs.github.com/en/rest/issues/issues#update-an-issue) but I contacted support and they stated:

The API now supports closing issues with state reasons. I'd reach out to the docs team to help update this in the API documentation.

Here is a sample query you can run:

curl -X PATCH -H "Accept: application/vnd.github.v3+json" -H "Authorization: token {TOKEN}" https://api.github.com/repos/{org_name}/{repo_name}/issues/{issue-id} -d '{"state":"closed","state_reason":"not_planned"}'

"state_reason" can either be completed or not_planned.

[gmlewis]

Wonderful, @parkr - thank you for your due diligence in contacting GitHub tech support!

Would you like to create a PR, or shall I open this issue up to other contributors to this repo to implement?

[parkr]

I would like to tackle the issue myself, but I won't hold it against anyone if they get to it first.

[gmlewis]

I would like to tackle the issue myself, but I won't hold it against anyone if they get to it first.

No rush, @parkr, and thank you! The issue is yours.