ENGCOM-1387: #7990: Unexpexted display of the tax row in the cart summary block #1135

 - Merge Pull Request magento-engcom/magento2ce#1135 from RomaKis/magento2ce:7990
 - Merged commits:
   1. 2b92f79

Author: magento-engcom-team

app/code/Magento/Tax/view/frontend/web/js/view/checkout/summary/tax.js

@@ -67,7 +67,7 @@ define([
                 }
             }
 
-            return amount;
+            return parseFloat(amount);
         },
 
         /**