Allow zuul-release to push merge commits
Allow zuul-release to push merge commits

This is to allow a merge of master into the feature/zuulv3 branch.

Change-Id: I45adea1fb9d213f4353336b0d1dd3fbd160ee260

noorul/os-project-config,openstack-infra/project-config,openstack-infra/project-config,dongwenjuan/project-config,Tesora/tesora-project-config,noorul/os-project-config,Tesora/tesora-project-config,dongwenjuan/project-config