chore(deps): bump ex_doc, benchee, stream_data and three CI actions

[HectorIFC]

Combine six low-risk Dependabot bumps into one change. Dev/test Elixir deps: ex_doc 0.39.3 -> 0.40.3 (the only mix.exs constraint change, plus its earmark_parser/makeup/makeup_erlang transitives), benchee 1.5.0 -> 1.5.1 (with deep_merge and statistex), stream_data 1.3.0 -> 1.4.0. CI actions: docker/setup-qemu-action v3 -> v4, actions/deploy-pages v4 -> v5, and actions/cache -> v6 (unifying the previously mixed v3/v4 usage across the ci, security, benchmark and pages workflows).

mix deps.get verifies the lock hashes, mix docs builds under ex_doc 0.40, and the full suite passes.

📝 Description

🔖 Type of Change

• 🐛 Patch - Bug fix (increments 0.0.X)
• ✨ Minor - New feature (increments 0.X.0)
• 💥 Major - Breaking change (increments X.0.0)

✅ Checklist

• Code follows project style guide
• Comments added to complex code
• Documentation updated
• Tests added/updated
• All tests passing
• Changes don't break existing functionality

🧪 How to Test

📸 Screenshots (if applicable)

🔗 Related Issues

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• Use label patch, minor or major on the PR
• Or include [major], [minor] in the title
• By default, it will be patch (0.0.1)
• See the Versioning section in the README for details

Summary by CodeRabbit

• Chores
  • Updated build, test, security, benchmarking, and deployment automation to use newer caching and virtualization tooling.
  • Improved the reliability and maintainability of automated documentation and Pages deployments.
  • Updated the documentation-generation tool to a newer version.

[github-actions]

✅ PR Validation Summary

Check	Status
PR Validation	✅ Passed
File Analysis	✅ Completed

Next Steps

• ✅ PR validation passed
• ⏳ Waiting for CI tests to complete
• 👀 Ready for review

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This comment was automatically generated by the PR validation workflow

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request upgrades GitHub Actions used by benchmark, CI, Docker, Pages, release, and security workflows. It also updates the development-only ex_doc dependency constraint in mix.exs.

Changes

Maintenance updates

Layer / File(s)	Summary
Workflow action upgrades .github/workflows/*.yml	Dependency cache actions use actions/cache@v6. QEMU setup uses docker/setup-qemu-action@v4. Pages deployment uses actions/deploy-pages@v5.
Development dependency update mix.exs	The development-only ex_doc constraint changed from ~> 0.39.3 to ~> 0.40.3.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
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.
Title check	✅ Passed	The title clearly summarizes the dependency and CI action updates described in the pull request.
Description check	✅ Passed	The description explains the dependency and CI updates and reports validation results, but leaves checklist items and the test instructions incomplete.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

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

[github-actions]

✅ PR Validation Summary

Check	Status
PR Validation	✅ Passed
File Analysis	✅ Completed

Next Steps

• ✅ PR validation passed
• ⏳ Waiting for CI tests to complete
• 👀 Ready for review

---

This comment was automatically generated by the PR validation workflow