A system which uses rpm ostree doesn't install rpms but images which are
pre-created in a build system. There's no guarantee that the build
system has the same uid/gid mapping for setroubleshoot as the local system.
systemd-tmpfiles's 'Z' type recursivelly sets the user and group
ownership on every reboot.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2012943
Related: rhbz#2050723