fix: ルールセットファイル名を修正

[amotarao]

概要

PR #1 の修正: ルールセットファイル名にハイフンを追加

変更内容

• core-branches-protectionruleset.json → core-branches-protection-ruleset.json にリネーム
• ファイル内容に変更なし

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Review was skipped as selected files did not have any reviewable changes.

💤 Files selected but had no reviewable changes (1)

• github/rulesets/core-branches-protection-ruleset.json

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

• 🔍 Trigger a full review

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch rename-ruleset-file

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}