Swift is a major OpenStack project. It could use testing upgrades. New jobs are placed in the experimental pipeline to avoid excessive CI load on general changes. Change-Id: I8a089fdd1f21eb4c3e00c38ea9dfcecc77565bf5 Related-Bug: #1874691
Partially-implements: blueprint kolla-deployment-scenario-testing Change-Id: I82266829dba47eac81f440a53706c2e9064b8e62