Fix integration of Cuckoo

[danibachar]

Short description 📝

Cuckoo is using XCTest APIs, as such it needs the XCTest framework to be available.
Adding it to the hard coded list, should solve that issue.

How to test the changes locally 🧐

You can reproduce the problem in this example repo
We have updated the fixture app_with_spm_dependencies to include Cuckoo and import it, such that it should compile.

Contributor checklist ✅

• The code has been linted using run mise run lint:fix
• The change is tested via unit testing or acceptance testing, or both
• The title of the PR is formulated in a way that is usable as a changelog entry
• In case the PR introduces changes that affect users, the documentation has been updated

Reviewer checklist ✅

• The code architecture and patterns are consistent with the rest of the codebase
• Reviewer has checked that, if needed, the PR includes the label changelog:added, changelog:fixed, or changelog:changed, and the title is usable as a changelog entry