[BugFix] Fix output of `SipHash(as_tensor=False)` (#2664) #3893

Job	Run time
unittests-meltingpot / linux-job	15m 3s
unittests-pettingzoo / linux-job	10m 18s
unittests-atari-dqn (3.9, 12.1) / linux-job	12m 53s
unittests-brax (3.11, 12.1) / linux-job	11m 18s
unittests-chess (3.9, 12.1) / linux-job	8m 37s
unittests-d4rl (3.9, 12.1) / linux-job	9m 22s
unittests-envpool (3.9, 12.1) / linux-job	9m 23s
unittests-gendgrl (3.9, 12.1) / linux-job	7m 56s
unittests-gym (3.9, 12.1) / linux-job	19m 38s
unittests-minari (3.9, 12.1) / linux-job	6m 39s
unittests-jumanji (3.9, 12.1) / linux-job	45m 39s
unittests-open_spiel (3.9, 12.1) / linux-job	8m 45s
unittests-openx (3.9, 12.1) / linux-job	22m 8s
unittests-robohive (3.9, 12.1) / linux-job	49m 50s
unittests-roboset (3.9, 12.1) / linux-job	11m 52s
unittests-sklearn (3.9, 12.1) / linux-job	6m 49s
unittests-smacv2 (3.9, 12.1) / linux-job	12m 5s
unittests-unity_mlagents (3.10.12, 12.1) / linux-job	9m 28s
unittests-vd4rl (3.9, 12.1) / linux-job	7m 1s
unittests-vmas (3.9, 12.1) / linux-job	13m 22s
	4h 58m 6s

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