[RFC] Enable github workflows?

[jan-kiszka]

Seems we can build single targets in finite time out github and even deploy the artifacts:

• https://github.com/jan-kiszka/gargoyle/actions/runs/1766609174
• jan-kiszka@7e4e9ae

I think I can model all targets via matrix build. Up to 20 jobs can be run in parallel on free accounts. Would that be a useful feature?

[lantis1008]

I think this would need the collaboration of @ericpaulbishop as the repo owner

[jan-kiszka]

Ping on this. I bet it could have revealed #956 earlier.