Update build-pull-request.yml

.github/workflows/build-pull-request.yml

@@ -12,6 +12,10 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3.0.2
+      - name: Setup node
+        uses: actions/setup-node@v3.3.0
+        with:
+          node-version: 16
       - name: Build app
         run: npm ci && npm run build
       - name: Upload artifact