5b770df C3I: switch koji auth from ssl to kerberos

Authored and Committed by mkovarik 3 years ago
    C3I: switch koji auth from ssl to kerberos
    
    New pipeline-as-a-service Koji is going to use Kerberos instead SSL.
    Added dist-git to services since new koji worker in
    pipeline-as-a-service is integrated with dist-git.
    Changing package_manager from dnf to yum which is configured in koji
    from pipeline-as-a-service.