Add no-response workflow

[triallax]

What is it?

• Meta improvement to the project (dev facing)

Description of the changes in your PR

Add a workflow to help manage issues where the author hasn't responded to requests for more information. Here's an example:

1. I open an issue, but it doesn't give enough information
2. @opusforlife creates a comment asking me for the missing enough and labels the issue as waiting-for-author
3. If I reply before 14 days, the label is automatically removed. If I reply after 14 days, the label is automatically removed and the issue is re-opened.

I opened an issue on the action's repo asking whether this works with PRs, but there's no reply yet. In any case, usage with PRs right now should be avoided, as 14 days is a far too short span of time. I plan to modify the action so we can have a separate daysUntilClose for PRs, but for now, this should be used with issues only.

I created a repo with an identical workflow to the one added in this PR. If anyone is interested in testing, feel free to ask and I'll send you an invite.

Due diligence

• I read the contribution guidelines.

[Stypox]

I'd add closeComment: false so that the issue is closed without any comment that would ping anyone involved in the thread.

[triallax]

that would ping anyone involved in the thread.

It doesn't though?

If you're referring to notifications, you get a notification even if the issue is only closed, so it doesn't matter much. If you're referring to actual pinging (á la @), then the comment doesn't contain any pings by default. I think the comment is useful for clarification on why the issue was closed, but I wouldn't entirely oppose removing it if that's the consensus.

[Stypox]

you get a notification even if the issue is only closed

Oh, then nevermind

[opusforlife2]

The run frequency should depend on how frequently the issue maintainers (mostly you) triage issues. If you do it every day, then the workflow should run every day or once in 2 days. This way, the max gap between you applying the label and the issue being closed would be 14-15 days. That is easily acceptable.

Compare this to a frequency of 5 days. The issue might get closed 19-20 days later.

[triallax]

Regardless of my triaging frequency, I think once per day is good enough.

[TobiGr]

Looks good to me now.
Let's give it a try!

[opusforlife2]

Odin: Unleash the Destroyer.