[murano-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: I08915c84325c48dffe3232e0e41b33d1754ccf4d

deliverables/train/murano-tempest-plugin.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/murano-tempest-plugin
         hash: 27cb0c96b961ae68bdf5ca4cfa7cf6331249d48c
+  - version: train-last
+    projects:
+      - repo: openstack/murano-tempest-plugin
+        hash: e30c8b624b4a11740d101573b5c47a7f8820da12

deliverables/xena/murano-tempest-plugin.yaml

@@ -7,4 +7,9 @@ release-type: python-pypi
 repository-settings:
   openstack/murano-tempest-plugin: {}
 team: murano
+releases:
+  - version: 2.3.0
+    projects:
+      - repo: openstack/murano-tempest-plugin
+        hash: e30c8b624b4a11740d101573b5c47a7f8820da12
 type: tempest-plugin