
We merged [1] which now makes sure we use actually latest puppet version and not latest 5.5 version. I however forgot that we need to pin puppet version 5.5 for CentOS jobs since it doesn't support the required Ruby version for Puppet 6. [1] https://review.openstack.org/#/c/618920/ Change-Id: Id5ebc4ff8841768cdad756b847403e54ea24e188