Squiz.Commenting.FunctionComment false positive when function contains closure

There is a false positive in `src\Standards\Squiz\Sniffs\Commenting\FunctionCommentSniff.php`

This code throws error: `Function return type is not void, but function is returning void here`
```php
/**
 * Test function
 *
 * @return array
 */
public function test()
{
	function () {
		return;
	};

	return [];
}
```