[Merge] ~philroche/livecd-rootfs/+git/livecd-rootfs:bugfix/unminimize-no-lxd-installer-package-jammy into livecd-rootfs:ubuntu/jammy

[Philip Roche]

@vorlon I have addressed your concerns in separate commits to make reviewing easier. I can squash these before merging. 

I have built test `ubuntu-server` `live` images and uploaded to https://people.canonical.com/~philroche/20240122-Jammy-unminimize-debug-LP-2049723/ for your review. 
-- 
https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-rootfs/+merge/458910
Your team Ubuntu Core Development Team is subscribed to branch livecd-rootfs:ubuntu/jammy.