Fatal error when using `tinker/user-overview.php`

[setpill]

Reproduce steps:

$ bash <(curl -s https://tinker.bunq.com/php/setup.sh)
[Output omitted]
$ tinker/user-overview.php

Expected outcome:

A new sandbox account is created and an overview is shown.

Actual outcome:

  ████████╗██╗███╗   ██╗██╗  ██╗███████╗██████╗ ██╗███╗   ██╗ ██████╗ 
  ╚══██╔══╝██║████╗  ██║██║ ██╔╝██╔════╝██╔══██╗██║████╗  ██║██╔════╝ 
     ██║   ██║██╔██╗ ██║█████╔╝ █████╗  ██████╔╝██║██╔██╗ ██║██║  ███╗
     ██║   ██║██║╚██╗██║██╔═██╗ ██╔══╝  ██╔══██╗██║██║╚██╗██║██║   ██║
     ██║   ██║██║ ╚████║██║  ██╗███████╗██║  ██║██║██║ ╚████║╚██████╔╝
     ╚═╝   ╚═╝╚═╝  ╚═══╝╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝╚═╝╚═╝  ╚═══╝ ╚═════╝ 
PHP Fatal error:  Uncaught bunq\Exception\NotFoundException: HTTP Response Code: 404
The response id to help bunq debug: 9395f5a3-bf74-4507-b74a-e8fad476200d
Error message: Route not found. in $PWD/vendor/bunq/sdk_php/src/Exception/ExceptionFactory.php:58
Stack trace:
#0 $PWD/vendor/bunq/sdk_php/src/Http/Handler/ResponseHandlerError.php(54): bunq\Exception\ExceptionFactory::createExceptionForResponse()
#1 $PWD/vendor/bunq/sdk_php/src/Http/Handler/HandlerUtil.php(42): bunq\Http\Handler\ResponseHandlerError->execute()
#2 $PWD/vendor/guzzlehttp/promises/src/FulfilledPromise.php(39): bunq\Http\Handler\HandlerUtil::bunq\Http\Handler\{closure}()
#3 $PWD/vendor/guzzlehttp/promises/src/TaskQueue.php(47): GuzzleHttp\Promise\FulfilledPromise::GuzzleHttp\Promise\{closure}()
#4 $PWD/vendor/guzzlehttp/promises/src/Promise.php(246): GuzzleHttp\Promise\TaskQueue->run()
#5 $PWD/vendor in $PWD/vendor/bunq/sdk_php/src/Exception/ExceptionFactory.php on line 58

System info:

$ uname -r
5.9.6-arch1-1
$ php --version
PHP 7.4.12 (cli) (built: Oct 29 2020 18:50:11) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies