ci: static link musl on alpine build

[Enter-tainer]

See Enter-tainer/typstyle#177

Although, it might not be a bug if the -alpine binary is design to be running on alpine linux. But generally -musl binary is designed to be universal binary for systems with ancient glibc. So we should static link musl here.

[Myriad-Dreamin]

Although, it might not be a bug if the -alpine binary is design to be running on alpine linux. But generally -musl binary is designed to be universal binary for systems with ancient glibc. So we should static link musl here.

I understand we should separate build both two binaries. One for linux distros shipped dynamic linked musl, and one for all rest unknown linux distros, especially for systems with ancient glibc.