add assignee to issues

[tdivoll]

This PR is to add an assignee to issues when websites are down. For now, I put my own user as a test. Ideally, emails would go to ccv-bot and then if possible, ccv-bot could send notifications to a Slack channel.

[tdivoll]

@broarr The GH issues that are created when a website is down go to different repos. Here's the one from the most recent outage of pricaimcit: https://github.com/brown-ccv/check-website-up/issues?q=is%3Aissue+is%3Aclosed

And here is the section from the octokit docs that I was working with: https://octokitnet.readthedocs.io/en/latest/issues/

[broarr]

This looks good to me. I'm doing some research into slack integration with github actions too

https://github.com/slackapi/slack-github-action

This looks promising. I'll take a peek and see how it works at some point

[broarr]

#51

[kmilo9999]

I recommend you to test it first to see if you get emails once the issue is assigned.