Fix wrong redis replication connection config path

Author: kloining

src/ChannelManagers/RedisChannelManager.php

@@ -487,7 +487,7 @@ public function onMessage(string $redisChannel, string $payload)
      */
     protected function getConnectionUri()
     {
-        $name = config('websockets.replication.redis.connection', 'default');
+        $name = config('websockets.replication.modes.redis.connection', 'default');
         $config = config("database.redis.{$name}");
 
         $host = $config['host'];