This adds bornhack.dk as an OIDC provider.
We currently do not yet map the `nickname` claim as a username field.
This means users logging in via Bornhack need to choose their username
manually, until https://github.com/bornhack/bornhack-website/issues/1837
is solved.
Change-Id: Ia91594107a0cd1d1e0a2ee7ca48d603a2ac681a5
Reviewed-on: https://cl.snix.dev/c/snix/+/30326
Tested-by: besadii
Reviewed-by: Ilan Joselevich <personal@ilanjoselevich.com>
Autosubmit: Florian Klink <flokli@flokli.de>
09c1e3d25b