bpo-40457: Support OpenSSL without TLS 1.0/1.1 (GH-19862)

OpenSSL can be build without support for TLS 1.0 and 1.1. The ssl module
now correctly adheres to OPENSSL_NO_TLS1 and OPENSSL_NO_TLS1_1 flags.

Also update multissltest to test with latest OpenSSL and LibreSSL
releases.

Signed-off-by: Christian Heimes <christian@python.org>

Automerge-Triggered-By: @tiran