message: e2e-test: add wait before checking backend availability
diff: @@ -507,6 +507,7 @@ async function testBackendStart(appDir: string, ...args: string[]) {
  // Skipping the whole block
  throw new Error(stderr);
  }
  + await new Promise(resolve => setTimeout(resolve, 500));
  print('Try to fetch entities from the backend');
  // Try fetch entities, should be ok
  