message: infra: enable source maps on test script
diff: "watch": "npm run build -- -w",
  "lint": "eslint .",
  "pretest": "npm run build",
  - "test": "node scripts/test-runner.js --parallel",
  + "test": "node --enable-source-maps scripts/test-runner.js --parallel",
  "test:integrations": "npm run test -- --i",
  "test:core-packages": "npm run test -- --cp",
  "prettify": "npx prettier . --write"
  