[zun] Transition Wallaby to EM

This transition the wallaby 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 November 2nd, 2022.

Change-Id: Ic0df7d3234df4bdae6549b5ddd1c8ac2f4cb988b

deliverables/wallaby/python-zunclient.yaml

@@ -11,6 +11,10 @@ releases:
     projects:
       - repo: openstack/python-zunclient
         hash: 751df7101f66da07b7c2366d20c2af06a91de3d6
+  - version: wallaby-em
+    projects:
+      - repo: openstack/python-zunclient
+        hash: 751df7101f66da07b7c2366d20c2af06a91de3d6
 branches:
   - name: stable/wallaby
     location: 4.2.0

deliverables/wallaby/zun-ui.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/zun-ui
         hash: aa4875f1218ff9f1cfa32640ccab28fe7b245410
     diff-start: 6.0.0
+  - version: wallaby-em
+    projects:
+      - repo: openstack/zun-ui
+        hash: aa4875f1218ff9f1cfa32640ccab28fe7b245410
 branches:
   - name: stable/wallaby
     location: 7.0.0.0rc1

deliverables/wallaby/zun.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/zun
         hash: 6ac7a3ee5322164995248f4534f807e897991180
     diff-start: 6.0.0
+  - version: wallaby-em
+    projects:
+      - repo: openstack/zun
+        hash: 6ac7a3ee5322164995248f4534f807e897991180
 branches:
   - name: stable/wallaby
     location: 7.0.0.0rc1