File _servicedata of Package buildkit

<?xml version="1.0"?>
<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/moby/buildkit.git</param>
    <param name="changesrevision">944939944ca4cc58a11ace4af714083cfcd9a3c7</param>
  </service>
</servicedata>