[ec2-api] 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: Ib2f6061e09786bafcfa668cf0d0c7848f47d8bce

deliverables/victoria/ec2-api.yaml

@@ -20,6 +20,10 @@ releases:
     projects:
       - repo: openstack/ec2-api
         hash: 2fff77e0e8680cee03a8dcf6f2c877164b8b9c10
+  - version: victoria-em
+    projects:
+      - repo: openstack/ec2-api
+        hash: 2fff77e0e8680cee03a8dcf6f2c877164b8b9c10
 branches:
   - name: stable/victoria
     location: 11.0.0.0rc1