Issue 50439 - Update docker integration for Fedora
    
    Bug Description:
    Fedora Dockerfile has been unbuildable/broken for sometime.
    
    Fix Description:
    Update the Dockerfile to make it work while mimicking ideas from the
    SUSE's counterpart.
    
    Additionaly, changing wget to curl in rpm.mk since wget does not seem to
    be available in the minimal image.
    
    Relates https://pagure.io/389-ds-base/issue/50439
    Relates https://pagure.io/389-ds-base/pull-request/50441#comment-88961
    
    Author: Matus Honek <mhonek@redhat.com>
    
    Review by: firstyear, vashirov (thanks!)