[solum] 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: If6232ea2fd20a6d04f60600f08e07a95e1436e34

deliverables/wallaby/python-solumclient.yaml

@@ -10,6 +10,10 @@ releases:
     projects:
       - repo: openstack/python-solumclient
         hash: 00e7fdeeccb3b57890576a68cd949c2415806eb9
+  - version: wallaby-em
+    projects:
+      - repo: openstack/python-solumclient
+        hash: 00e7fdeeccb3b57890576a68cd949c2415806eb9
 branches:
   - name: stable/wallaby
     location: 3.3.0

deliverables/wallaby/solum-dashboard.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/solum-dashboard
         hash: 874e693c34c6e2fb4d9a9a9a9cdd7d44d41df626
     diff-start: 5.0.0
+  - version: wallaby-em
+    projects:
+      - repo: openstack/solum-dashboard
+        hash: 874e693c34c6e2fb4d9a9a9a9cdd7d44d41df626
 branches:
   - name: stable/wallaby
     location: 6.0.0.0rc1

deliverables/wallaby/solum.yaml

@@ -15,6 +15,10 @@ releases:
       - repo: openstack/solum
         hash: 86765728bbe9d6287845d10f8a0201e8b3f447b6
     diff-start: 9.0.0
+  - version: wallaby-em
+    projects:
+      - repo: openstack/solum
+        hash: 86765728bbe9d6287845d10f8a0201e8b3f447b6
 branches:
   - name: stable/wallaby
     location: 10.0.0.0rc1