Run cluster tests in parallel

[omus]

The cluster tests are by far the slowest part of our test suite. As these tests run on k8s they provide us with an opportunity for running these testsets in parallel. Specifically, what we can do is we can start the jobs/pods all at the same time and if the cluster the these are run on can handle them all running in parallel they can all run at once. We can then have the test suites wait for their respective jobs/pods to finish and evaluate them normally.