[Versioning] Housekeeping in setup.py (#1816) #123

Job	Run time
unittests-pettingzoo / linux-job	8m 52s
unittests-brax (3.9, 12.1) / linux-job	8m 37s
unittests-d4rl (3.9, 12.1) / linux-job	8m 26s
unittests-envpool (3.9, 12.1) / linux-job	8m 24s
unittests-gendgrl (3.9, 12.1) / linux-job	6m 38s
unittests-gym (3.9, 12.1) / linux-job	16m 54s
unittests-jumanji (3.9, 12.1) / linux-job	8m 20s
unittests-minari (3.9, 12.1) / linux-job	15m 8s
unittests-openx (3.9, 12.1) / linux-job	16m 43s
unittests-robohive (3.9, 12.1) / linux-job	9m 46s
unittests-roboset (3.9, 12.1) / linux-job	7m 6s
unittests-sklearn (3.9, 12.1) / linux-job	5m 40s
unittests-smacv2 (3.9, 12.1) / linux-job	10m 52s
unittests-vd4rl (3.9, 12.1) / linux-job	7m 51s
unittests-vmas (3.9, 12.1) / linux-job	12m 34s
	2h 31m 51s

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