Update statistics table name check

Class name was missing Table, this result into creating new migrations everytime you publish the package.

src/WebSocketsServiceProvider.php

@@ -25,7 +25,7 @@ class WebSocketsServiceProvider extends ServiceProvider
             __DIR__.'/../config/websockets.php' => base_path('config/websockets.php'),
         ], 'config');
 
-        if (! class_exists('CreateWebSocketsStatisticsEntries')) {
+        if (! class_exists('CreateWebSocketsStatisticsEntriesTable')) {
             $this->publishes([
                 __DIR__.'/../database/migrations/create_websockets_statistics_entries_table.php.stub' => database_path('migrations/'.date('Y_m_d_His', time()).'_create_websockets_statistics_entries_table.php'),
             ], 'migrations');