File _service of Package cozy-stack

<services>
  <service name="download_url">
    <param name="host">apt.cozy.io</param>
    <param name="protocol">https</param>
    <param name="path">/debian/pool/testing/c/cozy-stack/cozy-stack_2018M2S1.orig.tar.xz</param>
  </service>
</services>