Revert "Add npm start to node.js.yml"

This reverts commit 60eb571.
The reason is because GitHub Actions got stuck after starting
the app on local server. It didn't progress to test using
cypress.

.github/workflows/node.js.yml

@@ -5,12 +5,13 @@ name: Node.js CI
 
 on:
   push:
-    branches: ["main"]
+    branches: [ "main" ]
   pull_request:
-    branches: ["main"]
+    branches: [ "main" ]
 
 jobs:
   build:
+
     runs-on: ubuntu-latest
 
     strategy:
@@ -19,13 +20,12 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: "npm"
-      - run: npm ci
-      - run: npm run build --if-present
-      - run: npm start
-      - run: npx cypress run
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - run: npm ci
+    - run: npm run build --if-present
+    - run: npx cypress run