Consider adding ClientRegistration.providerDetails.issuerUri

[jgrandja]

We should consider adding a new attribute ClientRegistration.providerDetails.issuerUri, which would be used for OpenID Connect Discovery 1.0 or OAuth 2.0 Authorization Server Metadata.

Related #8321 see comment

[ThomasVitale]

Hi @jgrandja, can I take this task?

[jgrandja]

That would be great @ThomasVitale ! Please go ahead.

[ThomasVitale]

Thanks @jgrandja, I'll start working on it then.

[ThomasVitale]

@jgrandja Besides adding the attribute and making it settable from the builder, which use cases should I support (and test)?