build(deps): bump actions/setup-node from 3 to 4 (#28)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 3 to 4.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v3...v4)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Use Node.js (Latest LTS)
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: lts/*
     - run: brew install imagemagick graphicsmagick