[heat-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: I0790ebd622456c11b96ffed52c36aa90a62e9d10

deliverables/train/heat-tempest-plugin.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/heat-tempest-plugin
         hash: e4d6583aa6ccb51fab9d9b89d9393843ae2bf199
+  - version: train-last
+    projects:
+      - repo: openstack/heat-tempest-plugin
+        hash: 5c548478b5f3c6dc1323272f99422fd80fd1c19c

deliverables/xena/heat-tempest-plugin.yaml

@@ -8,3 +8,8 @@ repository-settings:
   openstack/heat-tempest-plugin: {}
 team: heat
 type: tempest-plugin
+releases:
+  - version: 1.3.0
+    projects:
+      - repo: openstack/heat-tempest-plugin
+        hash: 5c548478b5f3c6dc1323272f99422fd80fd1c19c