Ilia Denisov
046857177e
These three jobs run on the host runner, which shares a single workspace. Run concurrently, they race on workspace teardown: ui-test's production build leaves a root-owned ui/frontend/build that a sibling job's (non-root) cleanup cannot remove, which then spuriously fails that job — observed repeatedly on go-unit when it overlapped a ui-test build. Put all three in one global concurrency group (galaxy-host-runner, cancel-in-progress: false) so they run one at a time and never collide. CI becomes more serial but the false failures stop. This also subsumes ui-test's former ui-test-singleton group, which guarded the Playwright :5173 port; the shared group preserves that guarantee.