[keystone-tempest-plugin] Tag wallaby-last

Wallaby 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 'wallaby-last' as well as a new version also with same hash.

[1] https://releases.openstack.org/wallaby/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

Change-Id: Id85b9f5dcc2b97b9b326b514584fddeed85bf156

deliverables/antelope/keystone-tempest-plugin.yaml

@@ -9,3 +9,8 @@ repository-settings:
     tarball-base: keystone_tempest_plugin
 team: keystone
 type: tempest-plugin
+releases:
+  - version: 0.11.0
+    projects:
+      - repo: openstack/keystone-tempest-plugin
+        hash: 7f43a203803248854f8213c91ae61c04d33d57f3

deliverables/wallaby/keystone-tempest-plugin.yaml

@@ -18,3 +18,7 @@ releases:
     projects:
       - repo: openstack/keystone-tempest-plugin
         hash: a6d4ceaf57f3a86be8318b4e84111d71104c28f5
+  - version: wallaby-last
+    projects:
+      - repo: openstack/keystone-tempest-plugin
+        hash: 7f43a203803248854f8213c91ae61c04d33d57f3