docs: mention to open issues when a merge happend without maintainer response

See the meeting notes from the 2026-01-19: (https://docs.postmarketos.org/policies-and-processes/governance/team-meetings/meeting-notes.html)

Discussed !7770 (merged), possibly limiting the wait period for maintainer approval from 2 weeks to 1 week.

We discussed to keep 2 weeks and make an issue template for “had to merge without maintainer review”, the new process will then be that the template gets filled out if a MR has to be merged without maintainer review after two weeks. The maintainer can then either say that they plan to review future merge requests, or indicate that they don’t want to maintain the thing anymore, or just not respond (which implies that they don’t want to maintain anymore). That way we should be able to get the listed maintainers to reflect reality better.

Everyone reading this, please make sure you are not listed as maintainer for packages that you don’t plan to do reviews for anymore 😄