Support for Github Action: Install Babashka

[ericdallo]

I need to setup babashka in clojure-lsp Github Actions to run the integration tests, I need to setup for Linux, Windows and Mac, and I realized that I would need to manually specify which binary I want to download from GIthub release, it'd be really helpful to have a Github Action "Install Babashka" where checks the OS and installs it to the PATH automatically, similar to Setup Clojure

It'd be even better to have babashka in Setup Clojure by an optional flag :)

[ericdallo]

Also, it seems the installer script is only supported for unix OSs, for Windows I'd need to manually download from the release, right?

[borkdude]

There is one here: https://github.com/turtlequeue/setup-babashka

You usually can find these things here:

https://github.com/babashka/babashka/blob/master/doc/projects.md

[ericdallo]

Thank you!