Bun v1.3.7

Fixes 91 issues (addressing 243 👍). 50% faster Buffer.from(array), 35% faster async/await, 3x faster array.flat(), 90% faster padStart/padEnd via JSC upgrade. New: Bun.JSON5, Bun.JSONL, Bun.wrapAnsi() (33-88x faster than wrap-ansi npm), --heap-prof-md, --cpu-prof-md, node:inspector Profiler API, replMode for Bun.Transpiler. Fetch now preserves header casing. HTTP/2 fixes for AWS ALB/gRPC/Fauna.