Fix docker support and update github actions

[trevor-vaughan]

• Ensure that docker is fully functional with the new changes

  • Determined that docker, unlike podman, only assigns the host IP
    after the instance has been created

• Updated the GitHub Actions to test both podman and docker

• Used a simple acceptance test for validation since the upstream beaker
  tests are wired for Vagrant

• Fail if the container is in an inaccessible state instead of trying to
  SSH forever

[genebean]

@trevor-vaughan is the use of the custom docker-api gem intentional? Also, do you know if the fixes in core beaker you mentioned are being worked on?

[trevor-vaughan]

@genebean Yes. The podman tests won't work without it (it's almost merged). The updates in core beaker aren't being worked to my knowledge since I just discovered the issue.