[Test] Fix flaky global gc test (#16154)
[Test] Fix flaky global gc test (#16154)

* fast global gc to fix flaky test

* lint
ray-project/ray,ray-project/ray,pcmoritz/ray-1,pcmoritz/ray-1,pcmoritz/ray-1,ray-project/ray,pcmoritz/ray-1,pcmoritz/ray-1,pcmoritz/ray-1,ray-project/ray,ray-project/ray,pcmoritz/ray-1,pcmoritz/ray-1,ray-project/ray,ray-project/ray,ray-project/ray