[openssl/openssl] 0a3733: Add an SSL BIO test for QUIC

[Matt Caswell]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 0a3733babbbb4e297ccfbc3ece29e95cafca5f2d
      https://github.com/openssl/openssl/commit/0a3733babbbb4e297ccfbc3ece29e95cafca5f2d
  Author: Matt Caswell <matt at openssl.org>
  Date:   2023-07-11 (Tue, 11 Jul 2023)

  Changed paths:
    M test/helpers/quictestlib.c
    M test/quicapitest.c

  Log Message:
  -----------
  Add an SSL BIO test for QUIC

We create an SSL BIO using a QUIC based SSL_CTX and then use that BIO
to create a connection and read/write data from streams.

Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21367)