Investigate and fix "generating test sources" timeout

[federico-terzi-anima]

See this issue: https://app.circleci.com/pipelines/github/AnimaApp/anima-design-to-code/7507/workflows/87e8d531-bc1c-436f-b8d0-e4cfa10af314/jobs/21706

[federico-terzi-anima]

Still an issue: https://app.circleci.com/pipelines/github/AnimaApp/anima-design-to-code/7507/workflows/64865741-2026-4c7a-942b-8a2b19767802/jobs/22173

[federico-terzi-anima]

New case: https://app.circleci.com/pipelines/github/AnimaApp/anima-design-to-code/8374/workflows/9570a52d-b5c8-48a7-a873-54f1c77fedb2/jobs/23402