[changes as per requested]

Author: hitesh-wagento

app/design/frontend/Magento/luma/Magento_Checkout/web/css/source/module/checkout/_shipping.less

@@ -185,7 +185,7 @@
                     width: 20px;
                 }
 
-                input[type="radio"] {
+                input[type='radio'] {
                     margin: 4px 5px 0 0;
                 }
             }