chore(deps): update actions/cache action to v4.2.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	patch	v4.2.3 -> v4.2.4

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Release Notes

actions/cache (actions/cache)

v4.2.4

Compare Source

What's Changed

• Update README.md by @​nebuk89 in https://github.com/actions/cache/pull/1620
• Upgrade @actions/cache to 4.0.5 and move @protobuf-ts/plugin to dev depdencies by @​Link- in https://github.com/actions/cache/pull/1634
• Prepare release 4.2.4 by @​Link- in https://github.com/actions/cache/pull/1636

New Contributors

• @​nebuk89 made their first contribution in https://github.com/actions/cache/pull/1620

Full Changelog: actions/cache@v4...v4.2.4

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[github-actions]

Renovate PR Review Results

⚖️ Safety Assessment: ✅ Safe

🔍 Release Content Analysis

• Minor patch update: v4.2.3 → v4.2.4 with no breaking changes
• Internal improvements: Upgraded @actions/cache to 4.0.5, moved @protobuf-ts/plugin to dev dependencies
• Documentation updates: README.md improvements by new contributor
• No security fixes: No explicit security vulnerabilities addressed
• No API changes: Public interface remains unchanged

🎯 Impact Scope Investigation

• Single usage location: actions/cache is only used in .github/actions/setup/action.yml:9
• Cache functionality: Used for Bun dependency caching (~/.bun/install/cache)
• Workflow integration: Referenced by 4 workflows (CI, release-please, deploy-preview, and internal deploy workflow)
• No configuration changes: Current cache configuration (path, key, restore-keys) remains fully compatible
• No dependency conflicts: Update isolated to GitHub Actions runtime environment

💡 Recommended Actions

• Immediate merge: Safe to merge without any code modifications
• No testing required: Patch-level update with backward compatibility maintained
• Monitor workflows: Verify that Bun caching continues to work as expected after merge
• No migration work: Existing cache keys and paths remain valid

🔗 Reference Links

• Release Notes v4.2.4
• Compare v4.2.3...v4.2.4

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