File _service of Package git-repo

<services>
  <service name="download_url">
    <param name="protocol">https</param>
    <param name="host">storage.googleapis.com</param>
    <param name="path">/git-repo-downloads/repo</param>
  </service>
  <service name="verify_file">
    <param name="file">_service:download_url:repo</param>
    <param name="verifier">sha256</param>
    <param name="checksum">e147f0392686c40cfd7d5e6f332c6ee74c4eab4d24e2694b3b0a0c037bf51dc5</param>
  </service>
</services>