Evaluate/test IRSA support in uds-core

[mjnagel]

Is your feature request related to a problem? Please describe.

Currently several applications in uds-core require external dependencies like object storage and databases. One common method for authentication to dependencies like this is IRSA.

Describe the solution you'd like

All uds-core applications should be evaluate for their dependency needs and ensure that they support IRSA for authentication/access. In particular applications need to support pod annotations and the ability to leave off explicit credentials.

We should also likely test IRSA setup/configuration in our EKS test as well.

[mjnagel]

In particular, identified that IRSA may not be functional on our keycloak chart.