tripleo: do not run tripleo-ci jobs on releasenotes patches
tripleo: do not run tripleo-ci jobs on releasenotes patches

Do not waste TripleO CI and OpenStack Infra resources when patching
release notes. Just run the release note jobs and regular python jobs so
we don't waste resources.

Change-Id: I82702fbc915748e6611c7f915a2744e7bd14326d

openstack-infra/project-config,openstack-infra/project-config