Zuulv3: zuul-jobs should shadow project-config
This allows us to use zuul-jobs, but if we need to override any
of the jobs defined there, we can do so in project-config.
config-projects:
- openstack-infra/project-config
untrusted-projects:
- - openstack-infra/zuul-jobs
+ - openstack-infra/zuul-jobs:
+ shadow: openstack-infra/project-config
- openstack-infra/openstack-zuul-jobs
- openstack-infra/openstack-zuul-roles
- openstack-infra/nodepool
