GHSA-r2vg-hvjm-fg38: Shopware Customer Orders can be canceled, even if refunds are disabled

Refunds in general can be enabled through the administration setting core.cart.enableOrderRefunds (in the cart panel).Which visually shows and hides the button. However, using a custom crafted request, a customer can still cancel his own orders.As this is not checked inside the route (and also not in the controller): https://github.com/shopware/shopware/blob/trunk/src/Storefront/Controller/AccountOrderController.php#L98 https://github.com/shopware/shopware/blob/trunk/src/Core/Checkout/Order/SalesChannel/CancelOrderRoute.php

To mitigate this, a check should be added to the CancelOrderRoute which verifies that the feature is enabled.