build(deps-dev): update dependency prettier to v3.9.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
prettier (source)	3.9.8 → 3.9.9

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Release Notes

prettier/prettier (prettier)

v3.9.9

Compare Source

diff

Markdown: Fix text with $ been incorrectly parsed as math syntax (#​20140 by @​fisker)

<!-- Input -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here.

<!-- Prettier 3.9.8 -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR`from`c.sh`, before anything else runs here.

<!-- Prettier 3.9.9 -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here.

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[claude]

prettierを3.9.8から3.9.9へ更新する開発依存のパッチ更新です。

リリースノートの変更は1件のみで、Markdownの$を含むテキストが誤って数式構文としてパースされる不具合の修正 (prettier/prettier#20140) です。破壊的変更や非推奨API、セキュリティ修正は含まれません。

package.jsonとpackage-lock.jsonの差分もprettier単体のversion/resolved/integrityのみで、間接依存への波及はありません。prettierはlint:prettierとflake.nixのtreefmt設定で全ファイルに適用されますが、リポジトリ内の*.mdに$を含む行がないため整形結果は変わらず、prettier --checkが落ちる懸念もありません。

そのままマージして問題ないと判断します。

Review metadata

• Reviewed commit: 1f88f75664701727a571825b027734a349e6a601
• PR: #256
• kyosei: 3.6.0
• kyosei-action: 2.4.0
• Claude Code: 2.1.220
• Model: claude-opus-5
• Execution: GitHub Actions (run)