[microbenchmark] avoid noisy neighbor #22133
[microbenchmark] avoid noisy neighbor #22133

Why are these changes needed?
see #22045, add sleep between benchmark tests avoid noisy neighbor tests.
ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray