Use merge queue

[bluss]

@adamreichold's recipe

• We don't run CI on the main branch at all any more because all commits are tested before being put there.
• Which tests are run is not differentiated by branch name but by event, either pull requests or merge queues.
• PR run should small and fast for quick feedback on proposed changes.
• Pre-merge checks should be complete so that the main branch is always is a known good state.

[bluss]

Wish me luck

[bluss]

Well, bad luck, it's supposed to run both yaml files for the merge queue 🤔

[adamreichold]

Well, bad luck, it's supposed to run both yaml files for the merge queue 🤔

Are you sure merge queues are enabled?

[bluss]

yes, it used the merge queue for this one

[adamreichold]

It might be necessary to explicit configure the require CI workflows for merge queues in the branch protection rules (of the main branch).

[bluss]

There's a lot of unnecessary and unintiuitive caveats mentioned here https://stackoverflow.com/a/76740962 and hopefully that's the right track..

All docs seem to suggest 'Require status checks to pass before merging' is an independent setting and not necessary, but something's going on.