ENGCOM-1368: [Forwardport] Fix to allow use decimals less then 1 in subproducts qty. #14814

 - Merge Pull Request #14814 from ihor-sviziev/magento2:2.3-develop-PR-port-14752
 - Merged commits:
   1. c3a1415

Author: magento-engcom-team

lib/web/mage/validation/validation.js

@@ -30,7 +30,7 @@
 
                     if (val && val.length > 0) {
                         result = true;
-                        valInt = parseInt(val, 10) || 0;
+                        valInt = parseFloat(val) || 0;
 
                         if (valInt >= 0) {
                             total += valInt;