Compat fix for older numpy versions #240

Job	Run time
lint	33s
build	18s
numpy_edge (3.12, numpy>=2.0.0rc1, ubuntu-latest)	1m 46s
tests (3.9, ubuntu-latest)	4m 37s
numpy_edge (3.9, numpy<1.25, ubuntu-latest)	1m 37s
tests (3.10, ubuntu-latest)	4m 42s
tests (3.11, ubuntu-latest)	2m 43s
tests (3.12, ubuntu-latest)	6m 51s
tests (3.9, macos-latest)	5m 48s
tests (3.9, windows-latest)	5m 24s
coverage	11s
upload_pypi	0s
	34m 30s

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