fix tests #25

Job	Run time
lint / lint	14s
typecheck / build	21s
tests / build (3.9, windows-latest)	48s
variants / build (3.9, ubuntu-latest)	1m 32s
tests / build (3.11, ubuntu-latest)	20s
variants / build (3.12, windows-latest)	2m 17s
variants / build (3.9, windows-latest)	2m 11s
variants / build (3.12, ubuntu-latest)	1m 23s
tests / build (3.10, windows-latest)	1m 1s
tests / build (3.10, ubuntu-latest)	18s
tests / build (3.9, ubuntu-latest)	16s
tests / build (3.10, macos-latest)	44s
variants / build (3.12, macos-latest)	1m 15s
tests / build (3.13, windows-latest)	1m 22s
tests / build (3.12, ubuntu-latest)	17s
tests / build (3.13, ubuntu-latest)	14s
tests / build (3.12, windows-latest)	57s
tests / build (3.13, macos-latest)	30s
tests / build (3.11, windows-latest)	1m 7s
tests / build (3.12, macos-latest)	36s
tests / build (3.11, macos-latest)	38s
variants / build (3.9, macos-latest)	28s
Publish released package to pypi.org	0s
Publish in-dev package to test.pypi.org	0s
docs	0s
Build & verify package	0s
	18m 49s

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