[cloudkitty-tempest-plugin] Tag train-last

Train branch is in Extended Maintenance now[1]. Tempest and
tempest plugins are branchless which means master version of
Tempest and its plugins is used to test the supported stable
branches.

Once any stable branch is moved to EM state then, Tempest and
its plugins compatible tag[2] needs to be released so that we can
keep testing the EM stable branches with that tag once master
Tempest and its plugins are not compatible[3].

Tagging 'train-last'[4] as well as a new version also with same hash.

[1] https://releases.openstack.org/train/index.html
[2] https://docs.openstack.org/tempest/latest/stable_branch_support_policy.html
[3] https://docs.openstack.org/tempest/latest/tempest_and_plugins_compatible_version_policy.html
[4] https://docs.openstack.org/project-team-guide/stable-branches.html#extended-maintenance

Change-Id: Iceae0b43d2d564b44759a172c8ba4e02aec24b44

deliverables/train/cloudkitty-tempest-plugin.yaml

@@ -13,3 +13,7 @@ releases:
     projects:
       - repo: openstack/cloudkitty-tempest-plugin
         hash: eebbf698a19b5e3c8f23b4de19ec0d3da64c3bd5
+  - version: train-last
+    projects:
+      - repo: openstack/cloudkitty-tempest-plugin
+        hash: b709752ea5d7c4f9a0800d16f163cd6fe1eb54da

deliverables/xena/cloudkitty-tempest-plugin.yaml

@@ -9,3 +9,8 @@ repository-settings:
     tarball-base: cloudkitty_tempest_plugin
 team: cloudkitty
 type: tempest-plugin
+releases:
+  - version: 2.4.0
+    projects:
+      - repo: openstack/cloudkitty-tempest-plugin
+        hash: b709752ea5d7c4f9a0800d16f163cd6fe1eb54da