Added soft default to replication driver check

Author: rennokki

src/PubSub/Drivers/RedisClient.php

@@ -257,7 +257,7 @@ public function channelMemberCounts(string $appId, array $channelNames): Promise
      */
     protected function getConnectionUri()
     {
-        $name = config('websockets.replication.redis.connection') ?? 'default';
+        $name = config('websockets.replication.redis.connection') ?: 'default';
         $config = config('database.redis')[$name];
 
         $host = $config['host'];

src/WebSocketsServiceProvider.php

@@ -57,13 +57,13 @@ public function boot()
 
     protected function configurePubSub()
     {
-        if (config('websockets.replication.driver') === 'local') {
+        if (config('websockets.replication.driver', 'local') === 'local') {
             $this->app->singleton(ReplicationInterface::class, function () {
                 return new LocalClient;
             });
         }
 
-        if (config('websockets.replication.driver') === 'redis') {
+        if (config('websockets.replication.driver', 'local') === 'redis') {
             $this->app->singleton(ReplicationInterface::class, function () {
                 return (new RedisClient)->boot($this->loop ?? LoopFactory::create());
             });