fix: js-yaml の DoS 脆弱性を 5.2.1 へ更新

[devin-ai-integration]

Summary

Dependabot が報告した js-yaml の脆弱性 (Quadratic-complexity O(n^2) DoS via !!omap tag in YAML11_SCHEMA、medium、対象範囲 >=5.0.0, <=5.2.0) を修正。

pnpm-workspace.yaml の override を既存の js-yaml@<=4.1.1: '>=4.2.0' から js-yaml@<5.2.1: '>=5.2.1' に変更し、pnpm-lock.yaml 上の js-yaml を全て 5.2.0 → 5.2.1 (patched, 現行 latest) に更新。

依存関係のみの変更で、ソースコードへの影響なし。

Link to Devin session: https://app.devin.ai/sessions/f4612dbb53c6488ab661c530bca75c3c
Requested by: @ara-ta3

[devin-ai-integration]

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