feat: Staffeln support (#588)

Co-authored-by: Oleksandr Kozachenko <okozachenko1203@gmail.com>
Co-authored-by: Mohammed Naser <mnaser@vexxhost.com>
diff --git a/roles/defaults/vars/main.yml b/roles/defaults/vars/main.yml
index eb1603e..c650ad0 100644
--- a/roles/defaults/vars/main.yml
+++ b/roles/defaults/vars/main.yml
@@ -186,6 +186,9 @@
   senlin_engine: quay.io/vexxhost/senlin@sha256:5cb3108dfdeb02a8d910aa2666d8865c772774e431ceaf69391959d87e2b0674 # image-source: quay.io/vexxhost/senlin:zed
   senlin_health_manager: quay.io/vexxhost/senlin@sha256:5cb3108dfdeb02a8d910aa2666d8865c772774e431ceaf69391959d87e2b0674 # image-source: quay.io/vexxhost/senlin:zed
   skopeo: quay.io/skopeo/stable:latest
+  staffeln_db_sync: ghcr.io/vexxhost/staffeln:v2.2.3
+  staffeln_conductor: ghcr.io/vexxhost/staffeln:v2.2.3
+  staffeln_api: ghcr.io/vexxhost/staffeln:v2.2.3
   tempest_run_tests: us-docker.pkg.dev/vexxhost-infra/openstack/tempest:30.1.0-4
   vector: docker.io/timberio/vector:0.27.0-debian