Adjust the gh actions workflow

Author: grzegorz-bielski

.github/workflows/scala3doc.yaml

@@ -54,13 +54,16 @@ jobs:
       - name: Generate testcases documentation
         run: ./project/scripts/sbt scala3doc/generateTestcasesDocumentation
 
-      - name: Run e2e tests
-      - uses: actions/setup-node@v2
+      - name: Install node
+        uses: actions/setup-node@v2
         with:
           node-version: 12
           check-latest: true
-      - run: npm --prefix ./scala3doc/e2e ci
-      - run: npm --prefix ./scala3doc/e2e run ci
+
+      - name: Run e2e tests
+        run: |
+          npm --prefix ./scala3doc/e2e ci
+          npm --prefix ./scala3doc/e2e run ci
 
       - name: Generate Scala 3 documentation
         run: ./project/scripts/sbt scala3doc/generateScala3Documentation