run build instead of dev

Author: narengogi

.github/workflows/run_tests.yml

@@ -15,9 +15,11 @@ jobs:
           fetch-depth: 0
       - name: Install dependencies
         run: npm ci
+      - name: Build
+        run: npm run build
       - name: Start gateway and run tests
         run: |
-          npm run dev &
+          npm run build/start-server.js &
           echo "Waiting for gateway to start..."
           while ! curl -s http://localhost:8787 > /dev/null; do
             sleep 1