v0.5.1220

Distribution follow-up to v0.5.1219 (see its notes for the full 394-commit changelog since v0.5.1182 — NestJS, current-thread async runtime, type lowering, the test262 waves, and more). The v0.5.1219 brew/apt/winget/workers channels never published due to a release-packaging dispatch bug; this release ships those channels plus:

• fix(link): dedup wrapper-bundled perry-runtime in wrappers-first links (#5920, #5921)
• fix(transform): keep comma-sequence operands ahead of hoisted awaits (#5925, #5926)
• ci: auto-opt archive cache eviction in the test gate (#5892) and release-packages workflow_dispatch tag-fallback repo pinning