chore: fix pnpm setup order in release workflow

[marandaneto]

💡 Motivation and Context

The new release workflow fails before dependency installation because actions/setup-node tries to enable pnpm caching before the pnpm executable is available on PATH.

💚 How did you test it?

• Re-read the release workflow and verified pnpm/action-setup now runs before actions/setup-node
• Parsed .github/workflows/release.yml with Ruby YAML to confirm the workflow file is still valid

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.

If releasing new changes

• Ran pnpm changeset to generate a changeset file
• Added the release label to the PR