Have Jenkins jobs that reproduce ISOs when a branch ticket is Ready for QA

Following the discussion on #12715 (closed), we settled on trying to reproduce builds for branches which Redmine ticket is Ready for QA.

Feature Branch: puppet-tails:feature/12633-lower-reproducible-builds-workload;jenkins-jobs:feature/12633-lower-reproducible-builds-workload

Original created by @bertagaz on 13436 (Redmine)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information