Update the tests in this repo to follow the jest pattern and be more robust

[Racer159]

Describe what should be investigated or refactored

We should update the tests in this repo to follow the jest pattern started in https://github.com/defenseunicorns/uds-package-gitlab-runner. We should also make these tests actually interact with the database so that we can seed the db with data and ensure it is still there during upgrades.

Links to any relevant code

https://github.com/defenseunicorns/uds-package-gitlab-runner/tree/main/test