bpo-43669: PEP 644: Require OpenSSL 1.1.1 or newer (GH-23014)

- Remove HAVE_X509_VERIFY_PARAM_SET1_HOST check
- Update hashopenssl to require OpenSSL 1.1.1
- multissltests only OpenSSL > 1.1.0
- ALPN is always supported
- SNI is always supported
- Remove deprecated NPN code. Python wrappers are no-op.
- ECDH is always supported
- Remove OPENSSL_VERSION_1_1 macro
- Remove locking callbacks
- Drop PY_OPENSSL_1_1_API macro
- Drop HAVE_SSL_CTX_CLEAR_OPTIONS macro
- SSL_CTRL_GET_MAX_PROTO_VERSION is always defined now
- security level is always available now
- get_num_tickets is available with TLS 1.3
- X509_V_ERR MISMATCH is always available now
- Always set SSL_MODE_RELEASE_BUFFERS
- X509_V_FLAG_TRUSTED_FIRST is always available
- get_ciphers is always supported
- SSL_CTX_set_keylog_callback is always available
- Update Modules/Setup with static link example
- Mention PEP in whatsnew
- Drop 1.0.2 and 1.1.0 from GHA tests

.github/workflows/build.yml

@@ -177,7 +177,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        openssl_ver: [1.0.2u, 1.1.0l, 1.1.1k, 3.0.0-alpha14]
+        openssl_ver: [1.1.1k, 3.0.0-alpha14]
     env:
       OPENSSL_VER: ${{ matrix.openssl_ver }}
       MULTISSL_DIR: ${{ github.workspace }}/multissl