[barbican] Propose to switch the release model

Intermediary-released deliverables that did release only once during
the last cycle, and have not done a release yet are good candidates
to switch to the cycle-with-rc model, which is much more suitable for
deliverables that are only released once per cycle.

These changes are not mandatory and this patch is a conveniences to
highlight this point and open the discussion.

PTLs and release liaisons please decide to:
- immediately release an intermediary release (and -1 the proposed change)
- confirm the release model change (+1 the proposed change)
- stay uncertain for this cycle of how many releases will be made, but
  acknowledge that they need to do a release before RC1 (-1 the proposed
  change)

Change-Id: Ia50cd1dd931e2ab21899f40dc1d30c346f0f1ed0

deliverables/xena/ansible-role-atos-hsm.yaml

@@ -1,7 +1,7 @@
 ---
 team: barbican
 type: other
-release-model: cycle-with-intermediary
+release-model: cycle-with-rc
 storyboard: 1183
 repository-settings:
   openstack/ansible-role-atos-hsm: {}

deliverables/xena/ansible-role-lunasa-hsm.yaml

@@ -1,7 +1,7 @@
 ---
 team: barbican
 type: other
-release-model: cycle-with-intermediary
+release-model: cycle-with-rc
 storyboard: 1180
 repository-settings:
   openstack/ansible-role-lunasa-hsm: {}

deliverables/xena/ansible-role-thales-hsm.yaml

@@ -1,7 +1,7 @@
 ---
 team: barbican
 type: other
-release-model: cycle-with-intermediary
+release-model: cycle-with-rc
 storyboard: 1184
 repository-settings:
   openstack/ansible-role-thales-hsm: {}