Update python-flask-oidc to version 2.3.1 / rev 6 via SR 1274786
    
    https://build.opensuse.org/request/show/1274786
    by user StevenK + anag_factory
    - Update to 2.3.1:
      * Important
        + Rebased the Flask OIDC API on Authlib.
      * Added
        + Make the client_secrets.json file optional when OIDC is disabled
        + Support Python 3.12
        + Re-add redirect_to_auth_server() for compatibility with v1.x
        + Add a user model to flask.g with convenience properties
        + Add signals to hook into the login and logout process
      * Fixed
        + Include the root_path when redirecting to the custom callback route
        + Avoid redirect loops when the app is not mounted on the webserver root
        + Handle token expiration when there is no refresh_token or no token URL
        + Use the OIDC_CALLBACK_ROUTE with the ID provider when it is defined,
          instead of the default
        + Auto-renew tokens when they have expired (if possible), as version 1.x
          us