End-to-end test framework

Leverage the existing work we've done on creating end-to-end tests here and formally integrate the tests into the project.

Using the existing work as a base we would also like to:

• Use CircleCI to drive the tests
  • When building via the command line, these should not run automatically, but it should be possible to trigger them if needed.
• Use published container images instead of creating our own (fix the version tags on these too - use 24.0.0-rc for now)
• Use the https://www.testcontainers.org/ framework instead of Gizmo
• Use the web-driver support in the testcontainers framework instead of using SauceLabs