Debian bookworm is now the stable Debian and the installer is ready to use (T330495#8922009) :)
The people VMs have historically been an early adopter of new distro releases since they are real production machines but with low complexity and risk.
Test if the "makevm" cookbook works, since it now takes a --os parameter, with --os=bookworm.
If it works, migrate people1003 to people1004 and people2002 to people2003, copy user data, apply puppet roles
and finally shut down bullseye VMs.
If running into problems, report to infra foundations as evaluation results, testing the installer and bookworm in general with a puppetized httpd setup like this one.
Requesting new VMs in T338998.