[minor][core] fix gpu ids for SLURM (#7014)
[minor][core] fix gpu ids for SLURM (#7014)

* fix gpu ids

* fix

pcmoritz/ray-1,pcmoritz/ray-1,stephanie-wang/ray,richardliaw/ray,stephanie-wang/ray,robertnishihara/ray,pcmoritz/ray-1,robertnishihara/ray,robertnishihara/ray,pcmoritz/ray-1,stephanie-wang/ray,ray-project/ray,stephanie-wang/ray,richardliaw/ray,pcmoritz/ray-1,richardliaw/ray,robertnishihara/ray,robertnishihara/ray,richardliaw/ray,richardliaw/ray,pcmoritz/ray-1,robertnishihara/ray,pcmoritz/ray-1,ray-project/ray,ray-project/ray,ray-project/ray,robertnishihara/ray,stephanie-wang/ray,stephanie-wang/ray,robertnishihara/ray,pcmoritz/ray-1,stephanie-wang/ray,richardliaw/ray,ray-project/ray,richardliaw/ray,richardliaw/ray,ray-project/ray,robertnishihara/ray,ray-project/ray,ray-project/ray,stephanie-wang/ray,stephanie-wang/ray