Fix server SIGINT handling under Swoole

Abstracts/TraitServer.php

@@ -142,7 +142,9 @@ trait TraitServer
      */
     private function onPcntlSignal($signal, $callback): void
     {
-        \pcntl_signal($signal, $callback);
+        Process::signal((int)$signal, static function (int $signo) use ($callback): void {
+            call_user_func($callback, $signo, []);
+        });
     }