cloudbuild: Try uploading our binaries to the staging bucket also
cloudbuild: Try uploading our binaries to the staging bucket also

Adding build & upload of our binaries to the staging bucket, from the
trusted builder.

robinpercy/kops,justinsb/kops,kubernetes/kops,kubernetes/kops,robinpercy/kops,kubernetes/kops,robinpercy/kops,justinsb/kops,robinpercy/kops,justinsb/kops