* image: remove autologin via mkosi
In mkosi v24 --autologin no longer works for ttyS consoles. Since the CSPs use those exclusively for their serial consoles, we need to replace this with another solution (see next commit)
* image: add getty systemd unit for debug images
This replaces the mkosi --autologin solution with a getty systemd unit for ttyS0.
Note that both console and debug images hace their consoles enabled.
For reproducibility reasons, the final OS image does not ship the rpm database in sqlite format.
For supply chain security and license compliance reasons, we want to keep the rpm database of os images as a detached build artifact.
We now ship a reproducible, human readable manifest of installed rpms in the image under "/usr/share/constellation/packagemanifest" and upload the full rpm database as a build artifact (rpmdb.tar).
