File _service of Package buildah

<services>
  <service name="obs_scm">
    <param name="url">https://gitlab.com/rhcontainerbot/rpms/buildah.git</param>
    <param name="scm">git</param>
    <param name="revision">f33</param>
    <param name="extract">buildah.spec</param>
  </service>
  <service name="download_files">
    <param name="enforceupstream">yes</param>
  </service>
</services>