Appears to receive an array not a class so update the type cast

Author: lionslair

src/PubSub/Drivers/RedisClient.php

@@ -94,10 +94,10 @@ public function boot(LoopInterface $loop, $factoryClass = null): ReplicationInte
      *
      * @param  string  $appId
      * @param  string  $channel
-     * @param  stdClass  $payload
+     * @param  array  $payload
      * @return bool
      */
-    public function publish($appId, string $channel, stdClass $payload): bool
+    public function publish($appId, string $channel, array $payload): bool
     {
         $payload->appId = $appId;
         $payload->serverId = $this->getServerId();