[Merge] ~toabctl/livecd-rootfs:master-cpc-dont-modify-sshd_config into livecd-rootfs:ubuntu/master

[Thomas Bechtold]

> This isn't a full review, but I just wanted to confirm that the approach taken
> to fix this seems appropriate and reasonable. Thanks!
> 
> If you haven't already, you might want to verify that sshd_config.d/ support
> has existed in all the releases you need support for. I think it's a
> relatively new feature?

It's available in focal and later. That's all we need to care about for now I think.
-- 
https://code.launchpad.net/~toabctl/livecd-rootfs/+git/livecd-rootfs-1/+merge/425712
Your team Ubuntu Core Development Team is requested to review the proposed merge of ~toabctl/livecd-rootfs:master-cpc-dont-modify-sshd_config into livecd-rootfs:ubuntu/master.