Try time.sleep(0) when we pump across all tests

[MadLittleMods]

Try time.sleep(0) when we pump across all tests. Just seeing how much this slows things down by as time.sleep(...) will suspend execution on the current thread

Spawning from wanting better ergonomics when the work involves async Rust and @erikjohnston mentioning this as a possible option, #19867 (comment)

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