Refactor/Redo/Create new Unit Tests

[pavliuc75]

With the spring boot update comes the update to Junit 5, and there are some things to consider when writing unit tests. There is nice guide with good standards (IMO): https://phauer.com/2018/best-practices-unit-testing-kotlin/

There are many files that just don't have a serve a purpose, incomplete, or outdated, take a look at those as well. (ie. StudyDeploymentControllerTest)

There is also a guide on spring boot testing with kotlin where they show you examples of unit-, integration- and e2e tests: https://www.baeldung.com/kotlin/spring-boot-testing

Checklist

• [x] Wait for dependency updates to complete
• [x] Switch to Mockk and omit Mockito
• [x] Use backticks in test and test fixture names to improve readability
• [x] Consider using Kotest (kotlin's primary testing framework) instead of junit (no, we'll stick to what core is using to make things more consistent)

Modules

• [x] account
• [x] collection
• [ ] common
• [ ] consent
• [x] data
• [ ] datapoint
• [ ] datastream
• [ ] deployment
• [ ] document
• [ ] file
• [ ] protocol
• [ ] security
• [ ] study
• [ ] export
• [ ] WS input types

[pavliuc75]

mby also add authorization tests to contrllers