AbstractRestfulController::patch returns array, not mixed about laminas-mvc

[Ocramius]

Changing the return type to mixed may break BC here, as it would mean that callers can expect anything, whereas they previously would expect array 🤔

[Xerkus]

Following intended use of the return values in AbstractController and its descendants, array was never a valid return type as it is expected that ViewModel would be returned, with array just a convenience shortcut for ViewModel, while Response object as a return value would short circuit controller's dispatch event and would prevent render event entirely.

With that in mind, this is not a BC break.

[gregtyler]

Thanks both, with that in mind I've created #115 :)