As you are hopefully already aware, the Neutron-LBaaS project is being retired this cycle (and a lot of the patches to accomplish this will land in the next few days).
From a quick code search, it seems the following projects still include neutron-lbaas in their zuul job configs:
networking-odl networking-midonet senlin vmware-nsx zaqar For projects on this list, the retirement of neutron-lbaas *will* cause your zuul jobs to fail. *Please take action to remove this requirement!* It is possible that it is simply an extra unused requirement, but if your project is actually using neutron-lbaas to create loadbalancers, it will be necessary to convert to Octavia. If you need assistance with this change or have any questions, don't hesitate to stop by #openstack-lbaas on IRC and we can help! --Adam Harwell