message: reduce concurrency for jest tests
  the tests are timing out on launching the server.  reduce the concurrency as a workaround
diff: "test:coverage": "nyc npm run test:report",
  "test:fromroot": "mocha \"packages/**/dist/test/**/*.spec.js\" --exit",
  "test:full": "npm run test:ci:coverage",
  - "test:jest": "assign-test-ports && lerna run test:jest --stream --no-bail --no-sort",
  - "test:jest:bail": "assign-test-ports && lerna run test:jest --stream",
  - "test:jest:report": "assign-test-ports && lerna run test:jest --stream --no-bail --no-sort -- -- --ci --reporters=default --reporters=jest-junit",
  + "test:jest": "assign-test-ports && lerna run test:jest --concurrency 4 --stream --no-bail --no-sort",
  + "test:jest:bail": "assign-test-ports && lerna run test:jest --concurrency 4 --stream",
  + "test:jest:report": "assign-test-ports && lerna run test:jest --concurrency 4 --stream --no-bail --no-sort -- -- --ci --reporters=default --reporters=jest-junit",
  "test:mocha": "lerna run test:mocha --stream --no-bail --no-sort",
  "test:mocha:bail": "lerna run test:mocha --stream",
  "test:mocha:report": "lerna run test:mocha --stream --no-bail --no-sort -- -- --reporter mocha-junit-reporter --reporter-options mochaFile=nyc/mocha-junit-report.xml",
  