[solum-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 2.4.0 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: I1a65a80fdd8e679f41438d7150c743e3d7ecb800

deliverables/ussuri/solum-tempest-plugin.yaml

@@ -12,3 +12,7 @@ releases:
     projects:
       - repo: openstack/solum-tempest-plugin
         hash: 2c1a6c2ca005948a6851f1b254d21e23d6463269
+  - version: ussuri-last
+    projects:
+      - repo: openstack/solum-tempest-plugin
+        hash: 1c699e1d5552ef991e0da51ec4a7be158f36ed1f

deliverables/victoria/solum-tempest-plugin.yaml

@@ -13,3 +13,7 @@ releases:
     projects:
       - repo: openstack/solum-tempest-plugin
         hash: 80e23bb97926308505bc0ac206974468b38efe4e
+  - version: victoria-last
+    projects:
+      - repo: openstack/solum-tempest-plugin
+        hash: 1c699e1d5552ef991e0da51ec4a7be158f36ed1f