[telemetry-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: I2a3fe94047100bdb5a974095a7d114234bbb83b5

deliverables/antelope/telemetry-tempest-plugin.yaml

@@ -9,3 +9,8 @@ repository-settings:
     tarball-base: telemetry_tempest_plugin
 team: Telemetry
 type: tempest-plugin
+releases:
+  - version: 1.8.0
+    projects:
+      - repo: openstack/telemetry-tempest-plugin
+        hash: eff7af3610bccdd7694033360938614d617f72ec

deliverables/wallaby/telemetry-tempest-plugin.yaml

@@ -18,3 +18,7 @@ releases:
     projects:
       - repo: openstack/telemetry-tempest-plugin
         hash: 6d8e8eb83f0d1b572b07cead6f8ef8e012a8ec5f
+  - version: wallaby-last
+    projects:
+      - repo: openstack/telemetry-tempest-plugin
+        hash: eff7af3610bccdd7694033360938614d617f72ec