Fix missing context

Author: mpysiak

tests/Behat/Resources/suites.yml

@@ -32,6 +32,7 @@ default:
                 - sylius.behat.context.setup.channel
                 - sylius.behat.context.setup.currency
                 - sylius.behat.context.setup.customer
+                - sylius.behat.context.setup.cart
                 - sylius.behat.context.setup.exchange_rate
                 - sylius.behat.context.setup.geographical
                 - sylius.behat.context.setup.locale