wpt_view_cart_link.php

<?php

/**
* add following code to your theme's functions.php file
*/

add_filter('wpt_view_cart_link','wpt_custom_my_link_view_cart_footer_cart');
function wpt_custom_my_link_view_cart_footer_cart(){
	//your custom link here
	return 'https://google.com/';
}