Fixes for numpy 2.0 #37

Job	Run time
coverage	1m 5s
test_pre_commit	25s
setup (ubuntu-latest)	27s
setup (windows-latest)	1m 38s
pytest (3.8, py38, ubuntu-latest)	1m 11s
setup (macos-latest)	30s
pytest (3.8, py38, windows-latest)	2m 48s
pytest (3.8, py38, macos-latest)	1m 34s
pytest (3.9, py39, ubuntu-latest)	1m 18s
pytest (3.9, py39, windows-latest)	2m 52s
pytest (3.9, py39, macos-latest)	1m 6s
pytest (3.10, py310, ubuntu-latest)	1m 2s
pytest (3.10, py310, windows-latest)	3m 9s
pytest (3.10, py310, macos-latest)	53s
pytest (3.11, py311, ubuntu-latest)	1m 7s
pytest (3.11, py311, windows-latest)	2m 58s
pytest (3.11, py311, macos-latest)	54s
pytest (ubuntu-latest, 3.8, tensorflow-27)	1m 18s
pytest (ubuntu-latest, 3.9, tensorflow-28)	1m 12s
pytest (ubuntu-latest, 3.10, tensorflow-29)	1m 5s
pytest (ubuntu-latest, 3.10, tensorflow-210)	1m 7s
pytest (ubuntu-latest, 3.10, tensorflow-211)	1m 7s
pytest (ubuntu-latest, 3.9, numpy-120)	48s
pytest (ubuntu-latest, 3.10, numpy-121)	46s
pytest (ubuntu-latest, 3.10, numpy-123)	54s
pytest (ubuntu-latest, 3.11, numpy-124)	47s
	34m 1s

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