Updates default postal code for customer details

Updates the default postal code in the customer details data.
This ensures that the default data reflects a more accurate or valid postal code for testing purposes.

playwright-tests/business-logic/constants/DefaultTestData.ts

@@ -43,7 +43,7 @@ export function getCustomerDetails(): ICustomerDetails {
             street: faker.location.streetAddress(),
             city: 'Columbus',
             state: 'Ohio',
-            postalCode: '43215',
+            postalCode: '21237',
             country: 'United States'
         }
     };