This pr upgrades oidc to v3 . Function signature changes have been migrated as well. Specifically there are more client calls that take a context now. Where feasable a context is added to those calls. Where a context is not (easily) available context.TODO() is used as a reminder for when it does.
Related to #6619
add authURL parameters to urls for external IDPs, depended on the contents of the authRequest
---------
Co-authored-by: Livio Spring <livio.a@gmail.com>