Prebuilt wheels for `musllinux`

[JeppeKlitgaard]

Hi @messense,

I was wondering if you would be willing to add musllinux to the CI build? A common use-case would be to have pre-built binaries for Alpine Linux, which is common in containerised applications.

I believe maturin supports this out of the box (Rerunning maturin generate-ci github also makes a few changes to the other runners, I am not sure which of these are desirable and which are not)

Once again, thank you for taking the time to develop and maintain these bindings

[messense]

Happy to accept a PR.