Release OpenStack-Ansible Liberty/12.2.7

To remind reviewers, The Liberty and Mitaka releases
for OpenStack-Ansible are both tagged 'independent'
and not cycle releases. The same file must therefore
be changed to facilitate the release.

This patch is on top of the Mitaka release patch and
will therefore fail the CI verification of tags until
the Mitaka release patch has merged.

Change-Id: I1a6b2f5d14fbfac2b926d3207f68b60feceec5a7

deliverables/_independent/openstack-ansible.yaml

@@ -1093,3 +1093,9 @@ releases:
         hash: 3bcfed8a37a6f09b0ca2b106fb7adfcd72b1e371
       - repo: openstack/openstack-ansible-rsyslog_server
         hash: 74cf6cd7f2bf8bb66811ba259ba66825b4cc8ea8
+  - version: 12.2.7
+    projects:
+      - repo: openstack/openstack-ansible
+        hash: c6ee10de51803d3a74aabd0d7f56de401bdca6b5
+      - repo: openstack/openstack-ansible-security
+        hash: 44c1bc98a6da68273bbc488d4a101301d6d97854