Static linking on Alpine couldn't find LLVM static libraries

[bnusunny]

Related to rust-lang/rust-bindgen#2360 (comment).

Here is the llvm-config code saying --link-static option is required for 'Link the component libraries statically'.

clang-sys code here missed --link-static option.

[KyleMayes]

I released this as v1.9.0, but I realized there are some bad commits that broke users previously which led to me yanking the previous version (v1.8.2).

I will revisit this soon and remove those commits and release this in a new version.

[vadorovsky]

@KyleMayes I'm hitting the same issue and I see that 1.9.0 is still not released. Is there any chance we could get that change released?