staging-v24.3.22: release-24.3: server: return draining progress if the server controller is draining#156311

celiala merged 1 commit intostaging-v24.3.22cockroachdb/cockroach:staging-v24.3.22from

blathers/backport-staging-v24.3.22-155642cockroachdb/cockroach:blathers/backport-staging-v24.3.22-155642Copy head branch name to clipboard