Release v1.12.0

What's Changed

• Update CI README to include Valgrind on AArch64 by @nebeid in #1066
• Additional tests for failure modes for KEM API by @dkostic in #1048
• Fix potential NULL pointer dereference by @dkostic in #1067
• add integration build CI dimension for mySQL by @samuel40791765 in #1051
• add integration test CI dimension for MariaDB by @samuel40791765 in #1046
• Add SSL_get0_verified_chain by @andrewhop in #1055
• Add OSSL_HANDSHAKE_STATE enum for OpenSSL compatability by @andrewhop in #1070
• Upstream merge 2023-06-26 by @dkostic in #1072
• Fix DISABLE_PERL=on builds for non-assembly optimized platforms by @skmcgrail in #1068
• Fix BORINGSSL_PREFIX build for ppc64le by @skmcgrail in #1069
• align X509_VERIFY_PARAM host and email behavior with OpenSSL by @samuel40791765 in #1062
• Use build-in string-copy function by @torben-hansen in #1078
• Light tidy up of required dependency versions by @torben-hansen in #1076
• Remove unused variable declaration in ssl_test.cc by @dkostic in #1073
• Upstream merge 2023-06-27 by @torben-hansen in #1075
• Reapply "Remove support for "old-style" X509V3_EXT_METHODs" by @samuel40791765 in #1065
• Make PRNG model slightly more readable by @torben-hansen in #1079
• Add back custom extension support for libssl by @andrewhop in #1071
• Save leaf certificate in SSL early to avoid losing external data by @samuel40791765 in #1074
• Mark include as PUBLIC not SYSTEM PUBLIC by @skmcgrail in #1081
• Release v1.12.0 by @skmcgrail in #1085

Full Changelog: v1.11.0...v1.12.0