Consider opening up the SSO module to allow self-hosters to use OIDC

[AdrianLeeElder]

Disappointed to see self hosted staples like SSO behind enterprise modules. Generic OIDC should be part of open core in this day and age in my opinion with specific enterprise providers like Entra being the ones behind enterprise modules. Many self hosters make use of OIDC from Authentik, Authelia and similar.

The above feedback raises a good point - securing OIDC behind EE licensing instead of just specific providers inhibits self-hosters from using their existing infrastructure. This penalizes personal use, which is not the goal.