updated call to direct_login? for new core

lib/open_project/openid_connect/sso_logout.rb

@@ -2,6 +2,7 @@ module OpenProject
   module OpenIDConnect
     module SSOLogout
       include LobbyBoy::SessionHelper
+      include ::OmniauthHelper
 
       def session_expired?
         super || (current_user.logged? && id_token_expired?)
@@ -29,7 +30,7 @@ module OpenProject
         end
 
         # If the user may view the site without being logged in we redirect back to it.
-        site_open = !(Setting.login_required? && ::Concerns::OmniauthLogin.direct_login?)
+        site_open = !(Setting.login_required? && omniauth_direct_login?)
         return_url = site_open && "#{Setting.protocol}://#{Setting.host_name}"
 
         if logout_at_op! return_url