Compat fix for older numpy versions (#517) #243

Job	Run time
tests (3.9, ubuntu-latest)	4m 30s
tests (3.10, ubuntu-latest)	4m 43s
numpy_edge (3.12, numpy>=2.0.0rc1, ubuntu-latest)	1m 48s
tests (3.11, ubuntu-latest)	2m 44s
build	17s
numpy_edge (3.9, numpy<1.25, ubuntu-latest)	1m 38s
tests (3.12, ubuntu-latest)	6m 49s
lint	33s
tests (3.9, macos-latest)	12m 49s
tests (3.9, windows-latest)	5m 22s
coverage	11s
upload_pypi	27s
	41m 51s

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