Update actions/cache action to v5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	major	v4 -> v5

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Release Notes

actions/cache (actions/cache)

v5

Compare Source

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Configuration

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

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, 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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[claude]

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PR Review: Update actions/cache action to v5

Todo List:

• Read the modified workflow file to understand the change
• Analyze the impact of the major version update
• Check for potential breaking changes or security issues
• Provide review feedback

Review Summary

✅ APPROVE - This is a safe and straightforward dependency update.

Analysis

The change updates actions/cache from v4 to v5 in the CloudFront deployment workflow (line 66). The action is used to cache the s3deploy binary between workflow runs to avoid re-downloading it.

Security Assessment

✅ Secure: The update includes a commit SHA pin (a7833574556fa59680c1b7cb190c1735db73ebf0), which is a security best practice that prevents supply chain attacks.

Compatibility Assessment

✅ Compatible:

• actions/cache v5 maintains backward compatibility with v4 usage patterns
• The workflow usage (simple path/key caching) is basic and not affected by breaking changes
• The caching key format and outputs remain the same

Potential Issues

None identified:

• No breaking changes affect this simple caching use case
• The workflow syntax and parameters remain identical
• This is the only workflow file using actions/cache, so no consistency issues

Recommendation

Merge this PR. The actions/cache v5 update is safe and maintains full compatibility with the existing workflow configuration. The SHA pinning provides security benefits, and there are no breaking changes that affect this use case.

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