Fixed bug that worker will be stoped when onMessage or onClose failed in websocket server. (#2915)

* Fixed bug that worker will be stoped when `onMessage` or `onClose` failed in websocket server.

* Update CHANGELOG-2.0.md

Author: limingxinleo

src/Server.php

@@ -231,7 +231,11 @@ public function onMessage($server, Frame $frame): void
             return;
         }
 
-        $instance->onMessage($server, $frame);
+        try {
+            $instance->onMessage($server, $frame);
+        } catch (\Throwable $exception) {
+            $this->logger->error((string) $exception);
+        }
     }
 
     public function onClose($server, int $fd, int $reactorId): void
@@ -252,7 +256,11 @@ public function onClose($server, int $fd, int $reactorId): void
 
         $instance = $this->container->get($fdObj->class);
         if ($instance instanceof OnCloseInterface) {
-            $instance->onClose($server, $fd, $reactorId);
+            try {
+                $instance->onClose($server, $fd, $reactorId);
+            } catch (\Throwable $exception) {
+                $this->logger->error((string) $exception);
+            }
         }
     }