Merge pull request #74 from stackhpc/upstream/wallaby-2024-03-18

Synchronise wallaby with upstream

Author: markgoddard

.gitreview

@@ -2,4 +2,4 @@
 host=review.opendev.org
 port=29418
 project=openstack/nova.git
-defaultbranch=stable/wallaby
+defaultbranch=unmaintained/wallaby