[tacker] Transition Victoria to EM

This transition the victoria branch to extended maintenance.
Changes for bugfixes and things the team deems important are
still encouraged, but there will no longer be official releases
off of the branch.

Please +1 if the team is ready for us to proceed with this
transition, or -1 if there are any final backports currently in
flight that we should wait for. For the latter case, please
update the patch with the new commit hash after doing a final
release to get those changes out so we know to proceed with the
transition.

The transition deadline is April 27th, 2022.

Change-Id: I50c6ce481b2d39a908873abff44f625a249ab769

deliverables/victoria/python-tackerclient.yaml

@@ -15,6 +15,10 @@ releases:
     projects:
       - repo: openstack/python-tackerclient
         hash: 8ff2f35476027975d44fa7f6dad4a8ee022ff898
+  - version: victoria-em
+    projects:
+      - repo: openstack/python-tackerclient
+        hash: 8ff2f35476027975d44fa7f6dad4a8ee022ff898
 branches:
   - name: stable/victoria
     location: 1.3.0

deliverables/victoria/tacker-horizon.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/tacker-horizon
         hash: fe74538ae2e415381ad8a6489d30125442088526
     diff-start: 1.0.0
+  - version: victoria-em
+    projects:
+      - repo: openstack/tacker-horizon
+        hash: fe74538ae2e415381ad8a6489d30125442088526
 branches:
   - name: stable/victoria
     location: 2.0.0.0rc1

deliverables/victoria/tacker.yaml

@@ -32,6 +32,10 @@ releases:
     projects:
       - repo: openstack/tacker
         hash: 66fd77ab3be8e49f11001603f5ff92d3bf18a24a
+  - version: victoria-em
+    projects:
+      - repo: openstack/tacker
+        hash: 66fd77ab3be8e49f11001603f5ff92d3bf18a24a
 branches:
   - name: stable/victoria
     location: 4.0.0.0rc1