Docblock generation for `never`

PHP 8.1 introduced the `never` type (https://php.watch/versions/8.1/never-return-type).
If I create a docblock for the following code, it should add `@return never` and not `@return void`
```php
<?php

class User
{
    public function getName()
    {
        exit();
    }
}
```

Not really important for me, I just noticed it while I was playing around.