chore(deps): bump actions/setup-node from 3 to 4 (#47)

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
...

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

Author: dependabot[bot]

.github/workflows/build-css.yml

@@ -18,7 +18,7 @@ jobs:
           key: node-modules
           restore-keys: node-modules-
       - name: Setup Node.js Environment
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: '16'
       - name: Load Dependency