Allow use of reusable containers with microshed testing

[aguibert]

Starting with testcontainers 1.12.3, it is possible to reuse containers across multiple test runs. This function is just alpha mode right now, but microshed testing should aim to interoperate it since it will significantly improve test runtime.

See https://github.com/testcontainers/testcontainers-java/pull/1781 for details

[aguibert]

This works in the basic sense, but we will have to wait for reusable container w/ Network support in order to safely utilize this feature.