[trove] 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: I3527f89668e8b793fc93d11adcd9183e878fc260

deliverables/wallaby/python-troveclient.yaml

@@ -19,6 +19,10 @@ releases:
     projects:
       - repo: openstack/python-troveclient
         hash: c7319d8fe8cb6cfd5c423472283aadffb12ed52c
+  - version: wallaby-em
+    projects:
+      - repo: openstack/python-troveclient
+        hash: c7319d8fe8cb6cfd5c423472283aadffb12ed52c
 branches:
   - name: stable/wallaby
     location: 7.0.0

deliverables/wallaby/trove-dashboard.yaml

@@ -19,6 +19,10 @@ releases:
     projects:
       - repo: openstack/trove-dashboard
         hash: 3a6e79c3c0cabaf3293046647481a792895efb05
+  - version: wallaby-em
+    projects:
+      - repo: openstack/trove-dashboard
+        hash: 3a6e79c3c0cabaf3293046647481a792895efb05
 branches:
   - name: stable/wallaby
     location: 16.0.0.0rc1

deliverables/wallaby/trove.yaml

@@ -31,6 +31,10 @@ releases:
       - repo: openstack/trove
         hash: 579b6142cf8a37fdc35cfa313151c8f1063c9001
     diff-start: 14.0.0.0rc1
+  - version: wallaby-em
+    projects:
+      - repo: openstack/trove
+        hash: 579b6142cf8a37fdc35cfa313151c8f1063c9001
 branches:
   - name: stable/wallaby
     location: 15.0.0.0rc1