Run CI/CD on merge queue

[jakob-keller]

          In a follow-up PR, I'd also enable merge queues.

Originally posted by @webknjaz in #1163 (comment)

[webknjaz]

Example: https://github.com/cherrypy/cheroot/blob/1ff20b1/.github/workflows/ci-cd.yml#L6-L10

[github-actions]

This issue has been marked as stale because it has been inactive for more than 60 days. Please update this pull request or it will be automatically closed in 7 days.

[thehesiod]

@jakob-keller going to remove the stale thing, we just don't move that fast ;)

[webknjaz]

Or you could extend it to a year or something like that..

[thehesiod]

meh, there's so few issues not worth the hassle, more hassle in terms of having to ping issues we want to eventually fix

[webknjaz]

Such tools usually have a configuration toggle to ignore certain labels. Perhaps that should be configured.