Fedora 43 and 44 switched to systemd 258 rc4. The dbus-broker service
of systemd 258 does not start any more without enabling the capability
SYS_ADMIN.

The capabilities AUDIT_WRITE, SETUID and SETGID should be enough, but
they are not sufficient to be able to start the service.

With final systemd 258 it should be tested if the capability can be
removed again.

The hostname command is needed to be able to execute fixnet.service. It
has been missing from some docker files and therefore the script failed
in the -base images. The server images have not been affected as
ipa-client has a requirement for hostname.

Add capability sys admin to fix dbus broker in systemd 258