Move windows to bash

[mattip]

• I updated the package version in pyproject.toml and made sure the first 3 numbers match ./openblas_commit.txt. If I did not update ./openblas_commit.txt, I incremented the wheel build number (i.e. 0.3.29.0.0 to 0.3.29.0.1)

Note: update ./openblas_commit.txt with cd OpenBLAS; git describe --tags --abbrev=8 > ../openblas_commit.txt

Continuation of move to bash + cmake for windows build, started in #246. Towards #228

[mattip]

This is failing since CMake checks that llvm's flang.exe works by linking with a manifest file, which requires mt.exe, and overriding mt.exe with llvm-mt.exe or copying llvm-mt.exe to mt.exe in a way that CMake will find it is complicated. From this comment there is a way to do this with a CMakePresets.json file, (see microsoft/vscode-cmake-tools#4547) but I haven't figured it out yet.