Update auth/descriptions.php with missing key/value

added registration_include_password_confirmation_field description

Author: oluwaseye

config/devdojo/auth/descriptions.php

@@ -8,6 +8,7 @@
         'redirect_after_auth' => 'Where should the user be redirected to after they are authenticated?',
         'registration_show_password_same_screen' => 'During registrations, show the password on the same screen or show it on an individual screen.',
         'registration_include_name_field' => 'During registration, include the Name field.',
+        'registration_include_password_confirmation_field' => 'During registration, include the Password Confirmation field.',
         'registration_require_email_verification' => 'During registration, require users to verify their email.',
         'enable_branding' => 'This will toggle on/off the Auth branding at the bottom of each auth screen. Consider leaving on to support and help grow this project.',
         'dev_mode' => 'This is for development mode, when set in Dev Mode Assets will be loaded from Vite',