compatibility with Contao 5.3?

[cscheibelhut]

I tried to make it work on a Contao 5.3 instance.
Unfortunately when I click on the buttons to generate, nothing happens and I get the following error in the log:

[2024-10-10T13:24:11.357863+00:00] request.CRITICAL: Uncaught PHP Exception Error: "Class "GuzzleHttp\Client" not found" at GptController.php line 106 {"exception":"[object] (Error(code: 0): Class \"GuzzleHttp\\Client\" not found at /var/www/html/xyz.de/web/vendor/cubex-hro/contao-openai-bundle/src/Controller/GptController.php:106)"} {"request_uri":"https://xyz.de/_gpt?id=3461&mode=description","request_method":"GET"}

It works properly on a 4.13 instance.
Do you know what the issue could be?

[cubex-hro]

you need to require v1 for Contao 5 because of the GuzzleHttp Dependency.