Stabilize Undici socket handling on macOS

[backnotprop]

Summary

• apply upstream Undici PR #5547 to the pinned 7.29.0 dependency through pnpm patchedDependencies
• treat socket QoS marking as best effort so macOS EINVAL cannot abort an otherwise successful Cloudflare suite
• carry the patch through local-package and OCI frozen-install boundaries
• keep the patch removable once Miniflare moves to a fixed Undici release

Why

Both recent main runs completed all 316 core tests and all 37 Cloudflare tests, then intermittently failed on an unhandled setTypeOfService EINVAL from Undici on macOS. PR runs passed, confirming a platform/socket-state race.

Upstream: nodejs/undici#5547

Verification

• pnpm install --frozen-lockfile
• pnpm check:cloudflare
• pnpm test:local-package
• pnpm test:compact-compose
• pnpm verify:iteration