[Zun] Add kuryr-libnetwork to zunclient job
[Zun] Add kuryr-libnetwork to zunclient job

Kuryr-libnetwork was added to $PROJECTS in server job, this commit
added it to client job as well.

Change-Id: Iad85468f85d187a461e211308cc485fd11e81544

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