In passing, I'm removing a few obsolete ones.

Other changes in packages/versions are due to the GRUB upgrade, the shim
addition, packages being upgraded because they're pulled from testing, or
changes in the Tails ecosystem (t-p-s merged into tails.git, whisperback
upgraded to pick up translation updates).

Even if we create a changelog entry for the next major release, we need
to get a release candidate out first, and various variables are computed
based on the content of the changelog.