`mezzio/mezzio-authentication`'s `AuthenticationMiddleware` marked as final

[alexmerlin]

Bug Report

Error: Class Api\App\Middleware\AuthenticationMiddleware extends @Final class Mezzio\Authentication\AuthenticationMiddleware.

Since all classes in mezzio/mezzio-authentication have been marked as soft final (see PR#150) our AuthenticationMiddleware can no longer extend their AuthenticationMiddleware.

We need to adapt our AuthenticationMiddleware so that it no longer extends their class.

Q	A
Version(s)	6.x

[alexmerlin]

Fixed in #418