[tests] Remove unnecessary sleep time from pipelined ingest tests #28182
[tests] Remove unnecessary sleep time from pipelined ingest tests #28182

Signed-off-by: Stephanie Wang <eca4a1deeebad39ac96951cf16f96bc52c44a64a@cs.berkeley.edu>
ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray