v8.4.0 — instance component: promote_runner_tag + vm_size inputs Catches the instance component up to base-build-scratch's estate-runner inputs (promote-lane split from v8.3.0 + VM sizing from v8.2.0). Fixes the MR-pipeline wedge where pinning the whole component to the ref_protected crucible runner left detect-changes stuck_pending_no_matching_runners on unprotected MR refs. See CHANGELOG.md.