RFC 9266: Channel Bindings for TLS 1.3 support

[Neustradamus]

Can you add the support of RFC 9266: Channel Bindings for TLS 1.3?

• https://datatracker.ietf.org/doc/html/rfc9266

Little details, to know easily:

• tls-unique for TLS =< 1.2
• tls-server-end-point
• tls-exporter for TLS = 1.3

I think that you have seen the jabber.ru MITM and Channel Binding is the solution:

• https://notes.valdikss.org.ru/jabber.ru-mitm/
• https://snikket.org/blog/on-the-jabber-ru-mitm/
• https://www.devever.net/~hl/xmpp-incident
• https://blog.jmp.chat/b/certwatch

Thanks in advance.

Linked to:

• https://github.com/lib/pq/issues/817
• https://github.com/lib/pq/issues/914
• https://github.com/lib/pq/issues/941
• https://github.com/lib/pq/pull/608
• https://github.com/lib/pq/pull/621
• https://github.com/lib/pq/pull/788
• https://github.com/lib/pq/pull/833
• https://github.com/scram-sasl/info/issues/1