chore(deps): bump actions/setup-node from 4 to 6

[dependabot]

Bumps actions/setup-node from 4 to 6.

Release notes

Sourced from actions/setup-node's releases.

v6.0.0

What's Changed

Breaking Changes

• Limit automatic caching to npm, update workflows and documentation by @​priyagupta108 in actions/setup-node#1374

Dependency Upgrades

• Upgrade ts-jest from 29.1.2 to 29.4.1 and document breaking changes in v5 by @​dependabot[bot] in #1336
• Upgrade prettier from 2.8.8 to 3.6.2 by @​dependabot[bot] in #1334
• Upgrade actions/publish-action from 0.3.0 to 0.4.0 by @​dependabot[bot] in #1362

Full Changelog: actions/setup-node@v5...v6.0.0

v5.0.0

What's Changed

Breaking Changes

• Enhance caching in setup-node with automatic package manager detection by @​priya-kinthali in actions/setup-node#1348

This update, introduces automatic caching when a valid packageManager field is present in your package.json. This aims to improve workflow performance and make dependency management more seamless. To disable this automatic caching, set package-manager-cache: false

steps:
- uses: actions/checkout@v5
- uses: actions/setup-node@v5
  with:
    package-manager-cache: false

• Upgrade action to use node24 by @​salmanmkc in actions/setup-node#1325

Make sure your runner is on version v2.327.1 or later to ensure compatibility with this release. See Release Notes

Dependency Upgrades

• Upgrade @​octokit/request-error and @​actions/github by @​dependabot[bot] in actions/setup-node#1227
• Upgrade uuid from 9.0.1 to 11.1.0 by @​dependabot[bot] in actions/setup-node#1273
• Upgrade undici from 5.28.5 to 5.29.0 by @​dependabot[bot] in actions/setup-node#1295
• Upgrade form-data to bring in fix for critical vulnerability by @​gowridurgad in actions/setup-node#1332
• Upgrade actions/checkout from 4 to 5 by @​dependabot[bot] in actions/setup-node#1345

New Contributors

• @​priya-kinthali made their first contribution in actions/setup-node#1348
• @​salmanmkc made their first contribution in actions/setup-node#1325

Full Changelog: actions/setup-node@v4...v5.0.0

v4.4.0

... (truncated)

Commits

• 48b55a0 Update Node.js versions in versions.yml and bump package to v6.4.0 (#1533)
• ab72c7e Upgrade @​actions dependencies (#1525)
• 53b8394 Bump minimatch from 3.1.2 to 3.1.5 (#1498)
• 54045ab Scope test lockfiles by package manager and update cache tests (#1495)
• c882bff Replace uuid with crypto.randomUUID() (#1378)
• 774c1d6 feat(node-version-file): support parsing devEngines field (#1283)
• efcb663 fix: remove hardcoded bearer (#1467)
• d02c89d Fix npm audit issues (#1491)
• 6044e13 Docs: bump actions/checkout from v5 to v6 (#1468)
• 8e49463 Fix README typo (#1226)
• Additional commits viewable in compare view

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Summary by CodeRabbit

• Chores
  • Updated Node.js setup action version in multiple GitHub Actions workflows to the latest version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: a63a43d0-7bd3-4d78-9d32-8d50546cd4df

📥 Commits

Reviewing files that changed from the base of the PR and between 4822efd and b1217bf.

📒 Files selected for processing (3)

• .github/workflows/lighthouse-ci.yml
• .github/workflows/web-tests.yml
• .github/workflows/weekly-regression.yml

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📝 Walkthrough

Walkthrough

This PR updates the GitHub Actions actions/setup-node action from version 4 to version 6 across three CI/CD workflows: Lighthouse CI, web tests (unit and e2e), and weekly regression. No other workflow logic, job steps, or Node configuration changes were made.

Changes

Node.js Setup Action Upgrade

Layer / File(s)	Summary
Setup-node action version update .github/workflows/lighthouse-ci.yml, .github/workflows/web-tests.yml, .github/workflows/weekly-regression.yml	All workflow files updated to use actions/setup-node@v6 instead of @v4 across Lighthouse CI, unit/e2e test jobs, and weekly regression jobs. Node 20 version and npm caching configuration remain unchanged.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• asheshgoplani

🚥 Pre-merge checks | ✅ 7

✅ Passed checks (7 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title follows Conventional Commits format with 'chore(deps):' prefix and clearly describes the main change: upgrading actions/setup-node from version 4 to 6 across all affected workflows.
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.
Remote_parity	✅ Passed	PR updates GitHub Actions workflows only; no TUI behavior changes in internal/ui/ or cmd/agent-deck/, so remote_parity check doesn't apply.
Test_coverage_per_surface	✅ Passed	PR only updates GitHub Actions dependency version (actions/setup-node v4→v6) in workflows; no new feature introduced, so test coverage requirement is not applicable.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dependabot/github_actions/actions/setup-node-6

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