Modify two factor auth test

[ArielMejiaDev]

Description

it adds a validation on TwoFactorAuthenticationSettingsTest on both stacks.

How it benefit end users

it would prevent a break on tests if two factor authentication feature is not enabled or is commented/removed in config/fortify.php:

'features' => [
        Features::registration(),
        Features::resetPasswords(),
        Features::emailVerification(),
        Features::updateProfileInformation(),
        Features::updatePasswords(),
//        Features::twoFactorAuthentication([
//            'confirmPassword' => true,
//        ]),
    ],

[driesvints]

Remove the tests if you don't need them.