message: Fix Timer::clearAll test
diff: @@ -7,7 +7,7 @@ swoole_timer: #2697
  require __DIR__ . '/../include/bootstrap.php';
  $server = new Swoole\Server('127.0.0.1', get_one_free_port());
  $server->set(['log_file' => '/dev/null']);
  -$server->on('WorkerStart', function (Swoole\Server $server) {
  +$server->on('workerStart', function (Swoole\Server $server, int $worker_id) {
  Swoole\Timer::after(1000, function () {
  var_dump('never here');
  });
  @@ -15,9 +15,11 @@ $server->on('WorkerStart', function (Swoole\Server $server) {
  var_dump('never here');
  });
  Swoole\Timer::clearAll();
  + if ($worker_id === 0) {
  Swoole\Timer::after(10, function () use ($server) {
  $server->shutdown();
  });
  + }
  });
  $server->on('receive', function () { });
  $server->start();
  