Version 7.3.0-1 of puppet-module-placement is marked for autoremoval from testing on Thu 02 Jun 2022. It depends (transitively) on passenger, affected by #992786. You should try to prevent the removal by fixing these RC bugs.
Problems while searching for a new upstream version
high
uscan had problems while searching for a new upstream version:
In watchfile debian/watch, reading webpage
https://github.com/openstack/puppet-placement/tags failed: 500 read timeout