The current version builds Raylib 2.4-dev which is a little old. The current version of Raylib is 5.0 and has a bunch of new functions in it's API.

It should be as simple as replacing the URL in the alien file with: https://github.com/raysan5/raylib/archive/refs/tags/5.0.tar.gz

EDIT: Turns out I was wrong, the SHARED and STATIC options to cmake were removed in favor of BUILD_SHARED_LIBS.