qa: remove specific node-version from actions/setup-node

This will trigger `actions/setup-node` autodiscovery which checks `package-lock.json` for the required version.

Signed-off-by: Maximilian Bösing <[email protected]>

Author: boesing

.github/workflows/continuous-integration.yml

@@ -136,7 +136,6 @@ jobs:
       - uses: "actions/setup-node@v4"
         with:
           check-latest: true
-          node-version: 20
       - name: "Install node modules"
         run: "npm ci"
       - name: Run ESLint
@@ -149,7 +148,6 @@ jobs:
       - uses: "actions/setup-node@v4"
         with:
           check-latest: true
-          node-version: 20
       - name: "Install node modules"
         run: "npm ci"
       - name: Run Jest