File _service of Package nagstamon

<services>
  <service name="download_url">
    <param name="url">https://github.com/HenriWahl/Nagstamon/archive/refs/tags/v3.18.0.tar.gz</param>
    <param name="filename">Nagstamon-3.18.0.tar.gz</param>
  </service>
  <!-- <service name="tar" mode="buildtime"/> -->
  <!-- auto-update .spec from git tag/commit: -->
  <!-- <service name="set_version" mode="buildtime"/> -->
</services>