Add Person Who Closed Issue to Issues Table

> [!NOTE]
> Migrated from [augurlabs/augur#2456](https://github.com/augurlabs/augur/issues/2456)
> Originally opened by `@sgoggins` on 2023-06-28

---

The cntrb_id at the end of the issues table is intended to have the user id for the person who closed the issue. This is available from the issue API, here: https://docs.github.com/en/rest/issues/issues?apiVersion=2022-11-28#get-an-issue

Here is the returned JSON block containing that information:
```json
"closed_by": {
"login": "octocat",
"id": 1,
"node_id": "MDQ6VXNlcjE=",
"avatar_url": "https://github.com/images/error/octocat_happy.gif",
"gravatar_id": "",
"url": "https://api.github.com/users/octocat",
"html_url": "https://github.com/octocat",
"followers_url": "https://api.github.com/users/octocat/followers",
"following_url": "https://api.github.com/users/octocat/following{/other_user}",
"gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
"starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
"subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
"organizations_url": "https://api.github.com/users/octocat/orgs",
"repos_url": "https://api.github.com/users/octocat/repos",
"events_url": "https://api.github.com/users/octocat/events{/privacy}",
"received_events_url": "https://api.github.com/users/octocat/received_events",
"type": "User",
"site_admin": false
},
```

Simply add to the issue task.