[air] Do not use gzip for checkpoint dict conversion (#25177)
[air] Do not use gzip for checkpoint dict conversion (#25177)

Gzipping binary data is inefficient and slows down data transfer significantly.
ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray