GeezerVison

This is a small documentation follow-up to the signature-algorithm support added in gh-138252.

Three of those APIs require a specific OpenSSL version, but the reference docs don't mention it. ssl.get_sigalgs() requires OpenSSL 3.4 or later, and SSLSocket.client_sigalg() and SSLSocket.server_sigalg() require 3.5 or later. On an older version each raises NotImplementedError. The requirement is already stated in the What's New in 3.15 entry and enforced in the C code (Modules/_ssl.c), so this just brings the three reference entries in line.

A companion PR, #154518, adds the same kind of note to SSLSocket.group() and SSLContext.get_groups().

This is documentation only, so there is no news entry.