udpate widget version to v0.6.2

Author: halink0803

includes/class-woo-kyber-payment-gateway.php

@@ -386,7 +386,7 @@ public function get_order_total_amount_by_token( $order ) {
      */
     public function get_checkout_url( $order ) {
         // $version = $this->get_option( 'version' );
-        $endpoint = "https://widget.kyber.network/v0.6/?type=pay&theme=light&paramForwarding=true&";
+        $endpoint = "https://widget.kyber.network/v0.6.2/?type=pay&theme=light&paramForwarding=true&";
 
 
         $callback_url = get_site_url() . '/wc-api/kyber_callback';