feat: add timeout

tests/e2e/Services/Realtime/RealtimeCustomClientTest.php

@@ -226,6 +226,7 @@ class RealtimeCustomClientTest extends Scope
         $this->assertEquals('error', $payload['type']);
         $this->assertEquals(1008, $payload['data']['code']);
         $this->assertEquals('Invalid Origin. Register your new client (appwrite.unknown) as a new Web platform on your project console dashboard', $payload['data']['message']);
+        \usleep(250000); // 250ms
         $this->expectException(ConnectionException::class); // Check if server disconnnected client
         $client->close();
     }