fix typo in cicd

Merge pull request #37 from acalejos/plotting

Draft: Plotting

cleanup between self hosted jobs

Merge pull request #26 from acalejos/25-release-precompiled-binary-fo…

…r-nif-version-117-for-x86-linux

Draft: update GH actions

version 0.3.1

cast parameter to atom

update patch version for new build artifacts

use ubuntu20.04 runners for compatibility w/ CUDA

Fix hex package and Makefile for non mac