test: use DI instead of CoreRegistry

[jdrueckert]

Contains

Brief description of what the PR does like "Fixes #12345"

How to test

Brief description of how to test / confirm this PR before merging

Outstanding before merging

If anything. You can use neat checkboxes! Feel free to delete if not needed

• [ ] Need to consider use case x
• [ ] Still have to adjust the wiki doc
• [ ] Will need translation work