fix optuna #1476

Job	Run time
test-mujoco-envs (3.8, 1.3.1, ubuntu-22.04)	3m 34s
test-atari-envs (3.8, 1.3.1, ubuntu-22.04)	6m 43s
test-core-envs (3.8, 1.3.1, ubuntu-22.04)	4m 53s
test-atari-envs (3.8, 1.3.1, macos-latest)	8m 49s
test-core-envs (3.8, 1.3.1, macos-latest)	6m 23s
test-atari-envs (3.8, 1.3.1, windows-latest)	6m 48s
test-core-envs (3.8, 1.3.1, windows-latest)	5m 35s
test-atari-multigpu-envs (3.8, 1.3.1, ubuntu-22.04)	3m 37s
test-envpool-envs (3.8, 1.3.1, ubuntu-22.04)	5m 28s
test-mujoco_py-envs (3.8, 1.3.1, ubuntu-22.04)	5m 0s
test-pettingzoo-envs (3.8, 1.3.1, ubuntu-22.04)	3m 18s
test-procgen-envs (3.8, 1.3.1, ubuntu-22.04)	3m 3s
test-procgen-envs (3.8, 1.3.1, macos-latest)	3m 33s
test-procgen-envs (3.8, 1.3.1, windows-latest)	4m 46s
	1h 11m 30s

Provide feedback