Fix interval_size in CVTArchive and SlidingBoundariesArchive #2367

Job	Run time
pre-commit	52s
coverage	3m 19s
pin	2m 39s
test (ubuntu-latest, 3.11)	1m 23s
test (macos-latest, 3.11)	3m 17s
test (windows-latest, 3.11)	4m 34s
docs	1m 51s
examples	3m 37s
benchmarks	1m 41s
tutorials_list	4s
tutorials (tutorials/arm_repertoire.ipynb)	1m 9s
tutorials (tutorials/cma_mae.ipynb)	2m 15s
tutorials (tutorials/features/example.ipynb)	35s
tutorials (tutorials/fooling_mnist.ipynb)	2m 9s
tutorials (tutorials/lsi_mnist.ipynb)	2m 53s
tutorials (tutorials/lunar_lander.ipynb)	1m 45s
tutorials (tutorials/scalable_cma_mae.ipynb)	2m 6s
tutorials (tutorials/tom_cruise_dqd.ipynb)	6m 18s
deploy	0s
	42m 27s

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