add `blis` and `semicolon-lapack`

[lucascolley]

an alternative BLAS/LAPACK stack for SciPy:

• https://github.com/pyodide/blis
• https://github.com/ilayn/semicolon-lapack

cc @ilayn @agriyakhetarpal

See https://github.com/scipy/scipy/blob/main/tools/ci/emscripten/cibw_before_build_pyodide.sh for how this is done with Pyodide