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 maintenance release: v4.2.4 includes only administrative updates with upgraded @actions/cache dependency to 4.0.5 and moved @protobuf-ts/plugin to dev dependencies
• No breaking changes: Release notes contain no mentions of API modifications or breaking changes
• No security fixes: No security-related patches or vulnerabilities addressed in this release
• Documentation updates: Includes README.md improvements and routine maintenance commits

🎯 Impact Scope Investigation

• Single usage location: actions/cache is used only in .github/actions/setup/action.yml:7 for Bun dependency caching
• Widespread workflow integration: The setup action is referenced in 5 workflow jobs across CI and release-please workflows (lint, build, typecheck, test, publish)
• Stable cache configuration: Current cache setup uses standard path (~/.bun/install/cache) with hash-based key generation, which remains compatible
• No dependency conflicts: Update only affects the GitHub Actions runtime, no impact on project dependencies

💡 Recommended Actions

• Immediate merge recommended: This patch update is safe to merge without manual intervention
• No code changes required: Existing cache configuration and workflow definitions remain fully compatible
• Monitor post-merge: Verify cache functionality in next CI runs to confirm proper operation

🔗 Reference Links

• Release Notes v4.2.4
• Comparison v4.2.3...v4.2.4

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