Do not read config in Drupal\auto_unban\BanIpManager::__construct()

Also fixed the default value (get() does not have a second argument), although this indicates that this isn't actually a concern and could be removed as well as it never worked.

And I fixed a deprecation on the key() method, this was already deprecated in 8.0 but Drupal 11 actually removes the old path now.

Pushed a fix, was missing the assignment of configFactory completely now.

Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.