Do not install weak deps in containers
Those are pretty useless in containers. People want small containers and
if something extra is needed, they are going to install it. There is no
point in having python3-unbound or rpm-plugin-systemd-inhibit in thereā¦
Closes: https://pagure.io/releng/issue/8530
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>