Bump actions/setup-node from v4 to v6 across CI workflows

[jfrench9]

Summary

Upgrades the actions/setup-node GitHub Action from v4 to v6 across all CI/CD workflow files: build, create-release, and test. This ensures our workflows leverage the latest performance improvements, bug fixes, and compatibility updates provided by the action maintainers.

Changes

• .github/workflows/build.yml — Updated actions/setup-node from v4 to v6 (2 occurrences)
• .github/workflows/create-release.yml — Updated actions/setup-node from v4 to v6
• .github/workflows/test.yml — Updated actions/setup-node from v4 to v6

Motivation

• Performance: v6 includes internal optimizations for faster Node.js download and caching.
• Compatibility: Ensures compatibility with the latest GitHub Actions runner environments (Node 20 runtime default).
• Maintenance: Staying on supported action versions reduces risk of deprecated behavior and security vulnerabilities.

Key UI/UX Improvements

N/A — This is a CI infrastructure change with no user-facing UI/UX impact.

Breaking Changes

None expected. The actions/setup-node@v6 API is backward-compatible with v4 for standard usage (specifying node-version, caching, etc.). However, reviewers should verify:

• Any pinned cache keys or caching behavior still functions as expected.
• Node version resolution (e.g., from .nvmrc or node-version input) remains consistent.

Testing Notes for Reviewers

1. Verify all three workflows pass on this branch:
   • Trigger (or observe) the build, test, and create-release workflows and confirm they complete successfully.
2. Check Node.js version output: Confirm the setup step in each workflow logs the expected Node.js version.
3. Cache behavior: If dependency caching is configured via setup-node, verify cache hits/misses behave normally.
4. No application code changes — manual testing of the app itself is not required.

Browser Compatibility Considerations

N/A — No application or runtime code was modified. This change is isolated to GitHub Actions CI/CD pipeline configuration.

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🤖 Generated with Claude Code

Branch Info:

• Source: chore/bump-setup-node-v6
• Target: main
• Type: feature

Co-Authored-By: Claude noreply@anthropic.com