[Task] Fix itest for containers that need credentials

[maxcao13]

Fixing that itest above so it actually sets up the containers to require credentials? It might end up failing right now, so I think we can mark it as a known failure like this: https://stackoverflow.com/questions/4055022/mark-unit-test-as-an-expected-failure-in-junit , at least until we come up with some fix for the implementation.

Originally posted by @andrewazores in cryostatio/cryostat-web#672 (comment)