message: increase stopwatch test timer to be more tolerant.
diff: @@ -19,7 +19,7 @@ describe('Stopwatch', () => {
  stopwatch.totalMilliseconds = 3;
  stopwatch.start();
  await new Promise((resolve) => {
  - setTimeout(resolve, 3);
  + setTimeout(resolve, 4);
  });
  stopwatch.stop();
  expect(stopwatch.totalMilliseconds).to.be.at.least(6);
  