chore(deps): update actions/setup-node action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-node	action	major	v5.0.0 -> v6.0.0

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Release Notes

actions/setup-node (actions/setup-node)

v6.0.0

Compare Source

What's Changed

Breaking Changes

• Limit automatic caching to npm, update workflows and documentation by @​priyagupta108 in #​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

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Configuration

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

♻ 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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[github-actions]

Renovate PR Review Results

⚖️ Safety Assessment: ✅ Safe

🔍 Release Content Analysis

• Breaking Change: actions/setup-node v6.0.0 limits automatic caching to npm only, disabling default caching for pnpm and yarn
• Package Manager Detection: Enhanced package manager detection logic for auto-caching
• Documentation Updates: Updated workflows and documentation to reflect new npm-only caching behavior
• Dependency Upgrades: Internal upgrades to ts-jest (29.1.2 → 29.4.1), prettier (2.8.8 → 3.6.2), and actions/publish-action (0.3.0 → 0.4.0)
• No Security Fixes: This is a functionality change, not a security update

🎯 Impact Scope Investigation

• Usage Locations: actions/setup-node is used in 4 workflow files:
  • .github/workflows/ci.yml (5 jobs: build, lint, format, test, notion-fetch-dry-run)
  • .github/workflows/deploy-preview.yml (1 job)
  • .github/workflows/deploy-production.yml (1 job)
  • .github/workflows/sync-with-notion.yml (1 job)
• Current Configuration: All workflow usages already explicitly specify cache: 'pnpm'
• No Configuration Changes Needed: Since explicit caching is configured, the breaking change does not affect this codebase
• No Impact on Other Dependencies: This is an action version update that doesn't affect package dependencies

💡 Recommended Actions

• Immediate Merge: This PR is safe to merge immediately as all workflows already explicitly configure pnpm caching
• No Code Changes Required: The breaking change only affects workflows that relied on automatic pnpm caching, which this project doesn't use
• Verification: After merge, monitor the next CI runs to ensure caching continues working as expected
• Future Best Practice: Continue explicitly specifying cache: 'pnpm' in all setup-node configurations

🔗 Reference Links

• Release Notes v6.0.0
• Breaking Change PR #1374
• Version Comparison

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[github-actions]

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