On PR/push: Rebuild container from source. Once container is built, run all test suites in parallel
On push to master
Rebuild container (again), push to dockerhub
We recommend using act to locally run CI tests. This is much easier than repeatedly pushing to a branch/PR if you have a CI failure.
Running with the -b flag seems to be required, but then your directory will be owned by root:
act -b -j local_build_container; sudo chown -R $USER:$USER . .git