Description of problem:
unbound has static useradd scripts

Version-Release number of selected component (if applicable):
unbound-1.13.1-15.el9

How reproducible:
100%

Steps to Reproduce:
1.review %pre
2.
3.

Actual results:
%pre libs
getent group unbound >/dev/null || groupadd -r unbound
getent passwd unbound >/dev/null || \
useradd -r -g unbound -d %{_sysconfdir}/unbound -s /sbin/nologin \
-c "Unbound DNS resolver" unbound


Expected results:
use of system-sysusers 

Additional info:
https://www.freedesktop.org/software/systemd/man/systemd-sysusers.html
https://fedoraproject.org/wiki/Changes/Adopting_sysusers.d_format