Remove python version 3.8 from workflows and released wheels #65

Hello all,
as many projects now have done, maybe we should consider removing python 3.8 from the tested python versions in the CI/CD.
We also see some workflows failing because some dependencies are not generating anymore the binaries (python wheels) for such python version.

If the maintainers agree with this change I can propose making the changes myself.
I tag @chyalexcheng @Retiefasuarus here 😃