Fix seed management for SB and SB3 #243

Job	Run time
Generate build matrix	8s
build-and-push-arena-images (images/base, base-on3.10-bullseye, on=3.10-bullseye)	1m 38s
build-and-push-arena-images (images/base, base-on3.9-bullseye, on=3.9-bullseye)	1m 48s
build-and-push-arena-images (images/base, base-on3.7-bullseye, on=3.7-bullseye)	1m 47s
build-and-push-arena-images (images/ray_rllib, ray-rllib-on3.10-bullseye, on=3.10-bullseye)	27m 36s
build-and-push-arena-images (images/ray_rllib, ray-rllib-on3.9-bullseye, on=3.9-bullseye)	27m 50s
build-and-push-arena-images (images/stable-baselines, stable-baselines-on3.7-bullseye, on=3.7-bul...	6m 24s
build-and-push-arena-images (images/stable-baselines3, stable-baselines3-on3.10-bullseye, on=3.10...	22m 10s
build-and-push-arena-images (images/stable-baselines3, stable-baselines3-on3.9-bullseye, on=3.9-b...	22m 52s
	1h 52m 13s

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