Replace the direct URL with config's one
    
    To be customizable URL should be placed to "config"
    
    Fixes: https://pagure.io/freeipa/issue/7621
    Reviewed-By: Serhii Tsymbaliuk <stsymbal@redhat.com>
    Reviewed-By: Petr Vobornik <pvoborni@redhat.com>