As Pipeline graduated from `knative`, we're trying, with `plumbing` to
make remove our dependency on knative `test-infra` scripts. Those
scripts have been migrated to `tektoncd/plumbing`, so let's start use those.
The end goal being to reduce even more the use of those script and
only use pipeline to run experimental pipelines 👼.
Signed-off-by: Vincent Demeester <vdemeest@redhat.com>
This adds a single dummy test (required to make dep fetch the dependencies),
and then the Gopkg.toml configuration so we grab the presubmit helper scripts.
This will eventually use the code in plumbing instead of knative, but that isn't
ready yet.
