Version 2.8.0 - refresh dependencies

Version 2.8.0

Update to CMake 3.27 or later, OpenSSL 3

• API change
  • 'int facility' must be defined in all executables using u/log
• Features
  • support TLS v1.3
  • use CMake 3.27 or later for building
  • builds on MacOS now (kkaempf)
  • add Python 3.11 support (Joshua Kugler)
• Bugfixes
  • fix Ruby rb_io vs rb_io_t to support Ruby 3.x (Vitezslav Crhonek, kkaempf)
  • Fixed missing void in prototypes causing compile errors when
    using -Wstrict-prototypes (Olaf Trygve Berglihn)
  • Removed unused token lineno causing errors due to compile
    flag -Wunused (Olaf Trygve Berglihn)
  • Link with libm for floor() function (Khem Raj)
  • Added wsman-key-value.h to list of headers to install (Olaf Trygve Berglihn)
  • wsman-win-client-transport: add SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE,
    Ignore more problematic certificates if verify_peer is 0. (Alexander Usyskin)
  • unlock mutex before destroy (kkaempf)
  • fix many compiler warnings (Alexander Usyskin)
  • drop Python 3.7 support (kkaempf)