[heat-tempest-plugin] Tag ussuri-last & victoria-last

Ussuri and Victoria branches are in Extended Maintenance[1].
Once any stable branch is moved to EM state then, Tempest and
its plugins needs to be released[2] so that we have the compatible
tags to test the EM stable branches[3].

We taged ussuri-last & victoria-last for tempest[4] but forgot to do
it for the tempest plugins. Using the tag 1.5.0 hash which is compatible
for tempest ussuri-last and victoria-last.

[1] https://docs.openstack.org/tempest/latest/stable_branch_support_policy.html
[2] https://docs.openstack.org/tempest/latest/tempest_and_plugins_compatible_version_policy.html
[3] https://review.opendev.org/c/openstack/releases/+/843039

Change-Id: Ife104eaa4d75936e2514145153b1e70ca8ea054b

deliverables/ussuri/heat-tempest-plugin.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/heat-tempest-plugin
         hash: 37a8df97277b42693ead3f5709f23544788f5a9f
+  - version: ussuri-last
+    projects:
+      - repo: openstack/heat-tempest-plugin
+        hash: ba43685c131d6387779ed35f5bf61fc86667a728

deliverables/victoria/heat-tempest-plugin.yaml

@@ -13,3 +13,7 @@ releases:
     projects:
       - repo: openstack/heat-tempest-plugin
         hash: fa9f6ccd34c106bcaa50cb2f13caea2c387a6b5f
+  - version: victoria-last
+    projects:
+      - repo: openstack/heat-tempest-plugin
+        hash: ba43685c131d6387779ed35f5bf61fc86667a728