PR's link in notification is not working.

[TomPenguin]

If you click this #2307, the following message will be displayed.

{
  "message": "Not Found",
  "documentation_url": "https://docs.github.com/rest/reference/pulls#get-a-pull-request"
}

Thanks.

[matt-glover]

Likely fixed by https://github.com/Gamesight/slack-workflow-status/pull/16 or possibly https://github.com/Gamesight/slack-workflow-status/pull/13