Include Kakao OIDC provider

[Casamatechs]

Description 📓

Right now the Kakao provider only supports OAuth2.0 for authentication, but Kakao also allows developers to activate OpenID connect.

Since the data returned to the callback is different depending on the kind of authentication method and by default Kakao apps don't allow OpenID protocol, I think that is better to have a totally separated provider (kakao-oidc) rather than adding logic to the existing Kakao provider, which could lead to a more difficult to maintain codebase.

I have a working PoC and I am willing to also update the docs for next-auth v4 if this proposal is accepted.

How to reproduce ☕️

N/A

Contributing 🙌🏽

Yes, I am willing to help implement this feature in a PR

[sean-ahn]

I have created a proposal for this: #8107.