Is your feature request related to a problem? Please describe.

Spencer found tokio::time::advance, we can maybe use this to speed up some of our tests

Describe the solution you'd like

Replace uses of sleep to advance to speed up tests

Additional context

I took an initial stab at replacing all test instances of sleep, saw a bunch of test errors and a few test hangs. Didn't dig into the failures too much. May not be as straightforward as I originally thought. advance-time-on-tests contains the initial naive attempt at the conversion