How to set "Review" tab as a default (active) tab

add_filter( 'woocommerce_product_tabs', 'woo_reorder_tabs', 98 );
function woo_reorder_tabs( $tabs ) {
    $tabs['reviews']['priority'] = 5;           // Reviews first
    $tabs['description']['priority'] = 10;      // Description second
    return $tabs;
}