Rename sandbox-logback.xml to logback.xml

[wandi34]

Summary

Rename sandbox-logback.xml back to logback.xml to fix the unneeded creation of log files when running tests.

Looks like the cucumber runner does not pick up logging.config properly although the CucumberTestBase is properly annotated with @SpringBootTest.

Checklist for Definition of Done

Depending on the task some of the following jobs are not relevant. Please check the items or cross them out (~~text~~).

• [x] Code is technically reviewed by myself
• [x] Code is manually tested
• [x] Automatic tests for new functionality are created
• [x] Documentation is updated
• [x] Git history is clean