chore(deps): update pnpm/action-setup action to v4.2.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
pnpm/action-setup	action	minor	v4.1.0 -> v4.2.0

---

Release Notes

pnpm/action-setup (pnpm/action-setup)

v4.2.0

Compare Source

When there's a .npmrc file at the root of the repository, pnpm will be fetched from the registry that is specified in that .npmrc file #​179

---

Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM, on day 1 of the month ( * 0-3 1 * * ) in timezone America/New_York, Automerge - At any time (no schedule defined).

🚦 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.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[changeset-bot]

⚠️ No Changeset found

Latest commit: f6853b9

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
react-shiki	Ready	Preview	Comment	Nov 1, 2025 5:25am

[claude]

Claude finished @renovate[bot]'s task —— View job

---

PR Review: pnpm/action-setup v4.1.0 → v4.2.0

Todo List:

• Read repository guidelines (CLAUDE.md) - No repo-specific guidelines found
• Review the workflow file changes
• Assess changeset requirements for dependency updates
• Provide code quality and best practices feedback
• Submit comprehensive review

---

✅ Review Summary

This is a well-executed dependency update that does not require a changeset. Here's my analysis:

📋 Change Analysis

File: .github/workflows/changesets-renovate.yml:27

- uses: pnpm/action-setup@v4.1.0
+ uses: pnpm/action-setup@v4.2.0

🔍 Changeset Assessment

No changeset needed - This is correct behavior because:

1. Infrastructure dependency: This updates a GitHub Actions workflow dependency, not package source code
2. No API surface changes: The update doesn't affect the library's public API or user-facing functionality
3. CI/CD scope only: Changes are limited to the build/release pipeline infrastructure
4. Version semantics: Package versioning should reflect changes to the actual library, not tooling

The changeset-bot warning is expected and appropriate here.

🏗️ Code Quality & Best Practices

✅ Excellent practices observed:

• Pinned versions: Using exact version v4.2.0 instead of v4 provides reproducible builds
• Targeted scope: Update is surgical - only changes what's necessary
• Proper automation: Renovate handles this type of maintenance update appropriately

📈 Improvement Analysis

v4.2.0 enhancement: The new version adds support for fetching pnpm from custom registries specified in .npmrc files - a valuable improvement for projects with private registries.

🚦 Recommendation

✅ APPROVE: This PR can be merged as-is. The absence of a changeset is correct for infrastructure dependencies.