[gmq-sim] scbuild: implement RENAME CONSTRAINT in declarative schema changer#433

rishabh7m merged 1 commit intomaster-gmqcrltest-issue-syncing/cockroach-fork:master-gmqfrom

stable-gmq-sim--gmq-20251121-161225crltest-issue-syncing/cockroach-fork:stable-gmq-sim--gmq-20251121-161225Copy head branch name to clipboard