Fix interval_size in CVTArchive and SlidingBoundariesArchive #2366

Job	Run time
coverage	1m 30s
examples	3m 19s
docs	1m 47s
benchmarks	1m 23s
pre-commit	49s
test (ubuntu-latest, 3.11)	1m 16s
pin	2m 29s
tutorials_list	5s
test (macos-latest, 3.11)	3m 52s
test (windows-latest, 3.11)	4m 23s
tutorials (tutorials/arm_repertoire.ipynb)	1m 22s
tutorials (tutorials/cma_mae.ipynb)	2m 26s
tutorials (tutorials/features/example.ipynb)	42s
tutorials (tutorials/fooling_mnist.ipynb)	2m 38s
tutorials (tutorials/lsi_mnist.ipynb)	4m 13s
tutorials (tutorials/lunar_lander.ipynb)	2m 1s
tutorials (tutorials/scalable_cma_mae.ipynb)	2m 16s
tutorials (tutorials/tom_cruise_dqd.ipynb)	6m 14s
deploy	0s
	42m 45s

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