File _service of Package qalculate

<services>
  <service name="download_url">
    <param name="host">github.com</param>
    <param name="protocol">https</param>
    <param name="path">/Qalculate/libqalculate/releases/download/v5.9.0/libqalculate-5.9.0.tar.gz</param>
  </service>
</services>