Symfony 8 fatal error: Call to undefined method Request::get()

### Description
oneup/uploader-bundle 5.1.0 is not compatible with Symfony 8.
Symfony\Component\HttpFoundation\Request::get() was removed in Symfony 8,
but the bundle still uses it in multiple controllers.

### Error
PHP Fatal error: Call to undefined method Symfony\Component\HttpFoundation\Request::get()

### Affected code
Example:
```php
$value = $request->get($name);