Release vitrage-tempest-plugin for Yoga

vitrage-tempest-plugin is a tempest plugin. This patch propose a latest release for
vitrage-tempest-plugin to get any merged changes out prior to the final Yoga 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 Thursday, March 17.

$ git log --oneline --no-merges 5.4.0..dcdb623
251bb6d make it voting again
89790c2 ignore a gnocchi test that sometime fails
74b71d8 Remove ceilometer client, not used anymore
49f63d2 Updating python testing classifier as per Yoga testing runtime
bca12d3 recreate the assertItemsEqual
5e60fc7 Changed minversion in tox to 3.18.0

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: Ia35e8f2e6e64ce4e2413e0699ebced8281d0020e

deliverables/yoga/vitrage-tempest-plugin.yaml

@@ -8,3 +8,8 @@ repository-settings:
   openstack/vitrage-tempest-plugin: {}
 team: vitrage
 type: tempest-plugin
+releases:
+  - version: 5.5.0
+    projects:
+      - repo: openstack/vitrage-tempest-plugin
+        hash: dcdb623687c9370c7e212af3e9960fac141c73b8