Release final mistral-lib for Victoria

This proposed a release for mistral-lib to get any final merged changes
out prior to the lib freeze for Victoria going into effect.

If the team is ready to proceed, please leave a +1 to acknowledge this
release and we will process right away. If the team is working on any
final merges, leave a -1 with some detail on the status and update the
patch with the new commit hash to use when ready.

Patches with no response will be merged by Monday, Sept 7.

Change-Id: Id45fec0969de11fe6eea4f033484d7b9f4fb074d
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

deliverables/victoria/mistral-lib.yaml

@@ -11,3 +11,10 @@ releases:
     projects:
       - repo: openstack/mistral-lib
         hash: 301c17e7eabeb0d60b2216cd4e1919b095a5d410
+  - version: 2.3.0
+    projects:
+      - repo: openstack/mistral-lib
+        hash: 245c1272f2219991194cfead55d03277e68cccd7
+branches:
+  - name: stable/victoria
+    location: 2.3.0