fix(vitest): don't hang when mocking files with cyclic dependencies

[sheremet-va]

Description

Fixes #4373

The problem was that the call stack didn't contain the file that triggered the mock factory execution - in this case importActual should behave the same way as a dynamic import.

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[AriPerkkio]

Looks good. I did some manual testing locally and this fixes all the cases I had.

Thank you!

[AriPerkkio]

Any ideas why birpc doesn't timeout in these cases? The module is requested via rpc and resolved on main thread - right?

[sheremet-va]

Any ideas why birpc doesn't timeout in these cases? The module is requested via rpc and resolved on main thread - right?

RPC returned the information correctly. In this particular case we need to import ./module-1 the second time and since it is cached, we return the same .promise, so it just never resolves. We need to return exports in this case to not go into infinite waiting. We already do this for regular imports, but importActual worked a bit differently.