Add gihub actions CI/CD template

[ivvil]

Is your feature request related to a problem? Please describe.
Setting up CI/CD in github actions with crane

Describe the solution you'd like
An actions template to set up CI/CD and caching

Describe alternatives you've considered
Using the cachix action but it times out building deps

[lafrenierejm]

@ivvil Can you link to the workflow you were having issues with? Earlier today I went through the exercise of setting up Cachix without issue in this workflow for a package that builds using crane.