Use proper Kolla pin

Author: Alex-Welsh

etc/kayobe/stackhpc.yml

@@ -141,10 +141,7 @@ stackhpc_repo_elrepo_9_version: "{{ stackhpc_repo_distribution }}"
 
 # Kolla source repository.
 stackhpc_kolla_source_url: "https://github.com/stackhpc/kolla"
-# FIXME: Go back to normal tags once
-# https://review.opendev.org/c/openstack/kolla/+/951871 is merged and synced
-# downstream
-stackhpc_kolla_source_version: epoxy-test-alex
+stackhpc_kolla_source_version: stackhpc/20.0.0.12
 
 # Kolla Ansible source repository.
 stackhpc_kolla_ansible_source_url: "https://github.com/stackhpc/kolla-ansible"