Bump actions/setup-node from 4.4.0 to 6.0.0 (#335)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4.4.0 to 6.0.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@49933ea...2028fbc)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3
       - name: Use Node.js LTS (16.x)
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903
         with:
           node-version: '16'
       - run: npm install @abaplint/cli -g