cicd: add stale bot

[korikuzma]

close #12 . https://github.com/actions/stale . We will need to add a stale labels to all of our repos.

• Comments on stale issues and PRs

[ahwagner]

Looks good. Are we certain about these stale periods, though? Since these are notifications and not closures, should we be a little more aggressive with stale times?

E.g. 14 days for an issue, 7 for a PR?

[korikuzma]

@ahwagner 7 days for a PR makes sense. 14 days for issues seems a little short for me. I am thinking about all the issues we have in our repos... I think if we were to get spammed with comments, it might result in us ignoring these notifications. Maybe 30 or 45 days?

[ahwagner]

@ahwagner 7 days for a PR makes sense. 14 days for issues seems a little short for me. I am thinking about all the issues we have in our repos... I think if we were to get spammed with comments, it might result in us ignoring these notifications. Maybe 30 or 45 days?

Yeah, I understand that. Pick a number that seems like a reasonable starting point to you and we can reassess down the road.