CI Migrate CI to gh actions

[jeremiedbb]

Migrate CI from azure pipelines to github actions and fix the jobs that have been failing for a while

• factor common installation steps of BLIS and FlexiBLAS into the global installation script
• install more recent versions on clang and gcc
• use same bash script for windows installation instead of separated .cmd
• removed macos build with MKL. No longer available (at least on arm). (conda search blas --channel conda-forge)
• added zen3 as possible BLIS architecture in tests
• replaced distutils commands by corresponding setuptools ones
• modified test_flexiblas_switch to only check mkl switch on linux because not available on macos arm (see item above)