Morphs php annotation incorrect

* Laravel Version: 8.24.0
* PHP Version: 8.0
* Blueprint Version: 1.20.2
* Platform: Mac

In yaml
```yaml
obj: morphs
```

Generated annotation in Model:
```php
/**
 * @property string $obj
 */
```

Expected:
```php
/**
 * @property int $obj_id
 * @property string $obj_type
 */
```

Didn't test morphsUuid...
