remove_action( 'woocommerce_before_shop_loop_item', 'woocommerce_template_loop_product_link_open', 10 );

function my_custom_wc_template_loop_product_link_open() {
    echo '<a href="' . get_the_permalink() . '" class="woocommerce-LoopProduct-link" target="_parent">';
}

add_action( 'woocommerce_before_shop_loop_item', 'my_custom_wc_template_loop_product_link_open', 10 );