[senlin-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: Ib0de1dfb95a29264828c8315e1b6eb212eb8db9d

deliverables/train/senlin-tempest-plugin.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/senlin-tempest-plugin
         hash: e8c68ffb745c241edfe345471b206706eb4914cb
+  - version: train-last
+    projects:
+      - repo: openstack/senlin-tempest-plugin
+        hash: f71166b2c6619746ac24614ed151e4befdb1f495

deliverables/xena/senlin-tempest-plugin.yaml

@@ -8,3 +8,8 @@ repository-settings:
   openstack/senlin-tempest-plugin: {}
 team: senlin
 type: tempest-plugin
+releases:
+  - version: 1.4.0
+    projects:
+      - repo: openstack/senlin-tempest-plugin
+        hash: f71166b2c6619746ac24614ed151e4befdb1f495