Parallelize CI tasks to improve speed

[MitchTurner]

CI takes too long. I assume it's mostly the Aiken compilation that happens during the build process for each of the example projects.

I assume that if we split them up they could be handled by separate workers? That would parallelize the process.

[MitchTurner]

There are other articles talking about how to improve times, e.g. caches, etc, so there might be other ways:
https://www.reillywood.com/blog/rust-faster-ci/

The main issue is that it's much slower than I feel it should be.

[MitchTurner]

https://blog.logrocket.com/optimizing-ci-cd-pipelines-rust-projects/