refactor: migrate from `lazy_static` to `std::sync::LazyLock`

[mkroening]

This is blocked until the release of Rust 1.80 on 2024-07-25: https://www.whatrustisit.com/

[jounathaen]

I'd delay it even a little further. Not everybody updates the Rust toolchain on the release date :wink:

[mkroening]

I think rustup update is easy enough that people can just do that if they want to compile Uhyve. :)