Fix tests for Laravel 12

Author: gehrisandro

tests/ServiceProvider.php

@@ -42,6 +42,8 @@
     $app->bind('config', fn () => new Repository([]));
 
     (new ServiceProvider($app))->register();
+
+    $app->get(Client::class);
 })->throws(
     ApiKeyIsMissing::class,
     'The OpenAI API Key is missing. Please publish the [openai.php] configuration file and set the [api_key].',