Fix broken tests

[bgins]

We have some tests that are currently fail, fail intermittently or throw warnings. Let's look fix them or the code they test if they are right.

The tests include:

• src/common/cid-log.test.ts on bgins/testing - Call retries were exceeded
• tests/fs/concurrency.test.ts - Evaluation failed: Error: Path does not exist (intermittently)

There are also some warnings that seem related to dependency injection on bgins/testing but not on main.