Bump actions/setup-node from 2.1.5 to 2.4.1 (#83)

Update GitHub Action `actions/setup-node` from 2.1.5 to 2.4.1

Updated actions/setup-node [1] from version `2.1.5` to `2.4.1`.

Release notes: https://github.com/actions/setup-node/releases
Commits: actions/setup-node@v2.1.5...v2.4.1

[1]: https://github.com/actions/setup-node

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

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
       - name: "Setup Node.js version 15"
-        uses: actions/setup-node@v2.1.5
+        uses: actions/setup-node@v2.4.1
         with:
           node-version: "15"
       - name: Install Node modules