[DeadCode] Skip append array data on RemoveJustPropertyFetchRector

[samsonasik]

The following code should be skipped:

final class SkipAppendArrayData
{
    private $default = ['some data'];

    public function run()
    {
        $where = $this->default;
        $where[] = 'some append data';
    }
}

ref https://3v4l.org/UlZB6

[samsonasik]

Fixed 🎉

[samsonasik]

All checks have passed 🎉 @TomasVotruba it is ready for review.

[TomasVotruba]

Thanks 🙏