tests

nix coveralls #69

Job	Run time
test (windows-latest, 3.8)	1m 33s
test (windows-latest, 3.9)	1m 33s
test (windows-latest, 3.10)	1m 40s
test (windows-latest, 3.11)	1m 40s
test (windows-latest, 3.12)	1m 30s
test (macos-latest, 3.8)	42s
test (macos-latest, 3.9)	40s
test (macos-latest, 3.10)	46s
test (macos-latest, 3.11)	47s
test (macos-latest, 3.12)	48s
test (ubuntu-latest, 3.8)	32s
test (ubuntu-latest, 3.9)	38s
test (ubuntu-latest, 3.10)	34s
test (ubuntu-latest, 3.11)	32s
test (ubuntu-latest, 3.12)	36s
Build wheels on windows-latest	2m 43s
Build wheels on macos-latest	3m 1s
Build wheels on ubuntu-latest	3m 3s
	23m 18s

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