networking-midonet: Don't skip tempest jobs for tempest plugin changes
networking-midonet: Don't skip tempest jobs for tempest plugin changes

Update the regex as the project has tempest plugin these days.

Closes-Bug: #1651673
Change-Id: I7bf2df2b0a5d58ca367ccd90b40d226f1170b556

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