Make ArrayStore use int32 indices #2171

Job	Run time
coverage	34s
coverage	1m 36s
test (ubuntu-latest, 3.11)	47s
test (ubuntu-latest, 3.11)	1m 12s
pin	46s
pin	2m 25s
test (macos-latest, 3.11)	34s
test (macos-latest, 3.11)	4m 47s
test (windows-latest, 3.11)	33s
test (windows-latest, 3.11)	6m 33s
benchmarks	48s
benchmarks	2m 38s
docs	50s
docs	2m 16s
examples	34s
examples	4m 12s
pre-commit	47s
pre-commit	1m 23s
tutorials_list	4s
tutorials_list	6s
tutorials (tutorials/arm_repertoire.ipynb)	20s
tutorials (tutorials/arm_repertoire.ipynb)	1m 36s
tutorials (tutorials/cma_mae.ipynb)	22s
tutorials (tutorials/cma_mae.ipynb)	2m 17s
tutorials (tutorials/features/example.ipynb)	23s
tutorials (tutorials/features/example.ipynb)	56s
tutorials (tutorials/fooling_mnist.ipynb)	20s
tutorials (tutorials/fooling_mnist.ipynb)	2m 16s
tutorials (tutorials/lsi_mnist.ipynb)	22s
tutorials (tutorials/lsi_mnist.ipynb)	2m 53s
tutorials (tutorials/lunar_lander.ipynb)	22s
tutorials (tutorials/lunar_lander.ipynb)	1m 45s
tutorials (tutorials/tom_cruise_dqd.ipynb)	30s
tutorials (tutorials/tom_cruise_dqd.ipynb)	9m 8s
deploy	1s
deploy	0s
	56m 56s

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