docs: move the workflow example to actions/checkout@v7

[shenxianpeng]

One line in docs/guides/integrations.md: actions/checkout@v5 → @v7.

v5 is two majors behind. This pin is copied verbatim by anyone following the
guide, so it seeds every new workflow with a stale action. It was the only
checkout@ pin left in docs/.

The matching pins in commit-check-action (README, docs/fork-pr-comments.md,
examples/) move in commit-check/commit-check-action#254.

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Generated by Claude Code

Summary by CodeRabbit

• Chores
  • Updated the GitHub Actions checkout configuration to use the latest supported version.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 6ff8fb53-c5e9-46a4-a847-257a83dacc39

📥 Commits

Reviewing files that changed from the base of the PR and between dc84741 and 289c96d.

📒 Files selected for processing (1)

• docs/guides/integrations.md

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📝 Walkthrough

Walkthrough

The integration guide updates its GitHub Actions checkout step from actions/checkout@v5 to actions/checkout@v7.

Changes

GitHub Actions update

Layer / File(s)	Summary
Update checkout action version docs/guides/integrations.md	The documented workflow now uses actions/checkout@v7 instead of actions/checkout@v5.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the update to the documentation workflow example from checkout@v5 to checkout@v7.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/refresh-sample-output-602anc

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