opendev/infra-openafs-deb : add promote job
The promote job lives in openstack/openstack-zuul-jobs where the
secret for uploading is.  If the promote job is put in by
project-config, it should be able to access the secret.
Just to keep things together, add the gate/check jobs too.
jobs:
- opendev-promote-docs
+- project:
+ name: opendev/infra-openafs-deb
+ check:
+ jobs:
+ - openafs-deb-package-build
+ gate:
+ jobs:
+ - openafs-deb-package-build
+ promote:
+ jobs:
+ - openafs-deb-package-build-promote
+
- project:
name: opendev/infra-specs
check:
