Update deploy.yml

Author: TingluoHuang

.github/workflows/deploy.yml

@@ -33,11 +33,8 @@ jobs:
         node-version: ${{ env.NODE_VERSION }}
     - name: npm install, build, and test
       run: |
-        # Build and test the project, then
-        # deploy to Azure Web App.
-        npm install
+        npm ci
         npm run build --if-present
-        npm run test --if-present
     - name: 'Deploy to Azure WebApp'
       uses: azure/webapps-deploy@v2
       with: