[BUG] series method not working with nova model

[adaffre]

Describe the bug
error when using the ->series([]) method instancing graph in a Laravel Nova resource card, using ->model('Class').

To Reproduce

(new \Coroowicaksono\ChartJsIntegration\BarChart())
                ->title('Misura')
                ->model('\App\Models\Misura') 
                ->col_xaxis('ora')
                ->options([
                    'queryFilter' => array([
                        'key' => 'ora',
                        'operator' => 'IS NOT NULL',
                    ])
                ])
                ->series(array([
                    'label' => 'Product A',
                    'filter' => [
                        'key' => 'type_id',
                        'value' => '1',
                    ],
                ]))
                ->width('2/3'),

Screenshots

Dependencies Version:

• Laravel Version: 9.2
• Nova Version: 4.0
• Nova-ChartJS Version: 0.4.0
• DB: postgreSQL