doc/go1.21: update crypto release notes
Left out the following commits that felt more bug-fixy.
*
f0de4b4f03 - crypto/x509: fix certificate validation with FQDN on Windows <Patryk Chelmecki>
*
20e08fe68c - crypto/tls: advertise correct ciphers in TLS 1.3 only mode <Monis Khan>
*
295c237b4d - crypto/tls: enforce 1.3 record version semantics <Roland Shoemaker>
Change-Id: Idd38b5c6897130424a0e8b857f371d7d384fc143
Reviewed-on: https://go-review.googlesource.com/c/go/+/515955
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>