[CI] move build-scripts out of the repository

[wileyj]

move build-scripts out of the repo and into a composite action in the https://github.com/stacks-network/actions repo.

reasoning: as crates and other dependencies change, it removes the need for a merge to master to resolve and can be addressed outside of the blockchain repo.

[wileyj]

requires the following:
#4331 #4335

and should require #4278