Extend the pending call timeout for unit tests, so that we don't timeout too soon for call setup on slower builds/machines.

I was running tests earlier today, and with a debug FF setup, I was getting slow call setup times, just over the 2 second mark. Therefore this extends the time for ignoring a call a little bit further, so that we shouldn't hit these. Haven't tested this on all configurations, but should hopefully cover most of our common ones.