This patch adds a new pipeline, this pipeline do not comment when the ci set results.

An related patch is that the result detail will set to
https://status.openlabtesting.org/builds?project={change.project}&change={change.number},{change.patchset}&pipeline={pipeline.name}
which would be a separated patch in zuul.conf.