[vitest-pool-workers] Suppress CODE_MOVED log spam from workerd

[penalosa]

Fixes #12685.

Miniflare's structured log handler already filters CODE_MOVED for unknown code block messages (an internal workerd diagnostic), but vitest-pool-workers uses a custom handleRuntimeStdio callback that bypasses the structured logs pipeline and pipes stderr directly to process.stderr. This adds the pattern to the pool's own ignore list.

---

• Tests
  • Tests included/updated
  • Automated tests not possible - manual testing has been completed as follows:
  • Additional testing not necessary because: The change adds a string to an existing ignore list — the filtering mechanism is already well-tested by the existing entries.
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: Internal log filtering, no user-facing API change.

---

[changeset-bot]

🦋 Changeset detected

Latest commit: 5ae4e08

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[github-actions]

✅ All changesets look good

[ask-bonk]

The change is straightforward, correct, and consistent with how Miniflare already filters the same message. The string used ("CODE_MOVED for unknown code block") matches the pattern in Miniflare's structured-logs.ts. The filtering mechanism (.some((message) => str.includes(message))) is already in use and well-tested by the existing entries.

LGTM

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commit: 5ae4e08

[workers-devprod]

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.