bug#47297: Release 1.2.1 checklist

[Leo Famulari]

This is the checklist for the 1.2.1 release.

It uses the debbugs "blocking" mechanism, described here:

https://debbugs.gnu.org/server-control.html

I'll start by making this bug depend on a few others:

<https://bugs.gnu.org/46871>
Service manager "init scripts" missing from current-guix

<https://bugs.gnu.org/45704>
Remove Qt 4

Please, add the other tasks that should be completed for the release, so
that we don't forget.

Leo