ci: fix coverage #14

Job	Run time
mypy (3.8)	22s
test (3.8, ubuntu-latest)	1m 14s
mypy (3.9)	24s
test (3.8, windows-latest)	2m 9s
mypy (3.10)	20s
test (3.9, ubuntu-latest)	1m 25s
mypy (3.11)	23s
test (3.9, windows-latest)	2m 30s
mypy (3.12)	25s
test (3.10, ubuntu-latest)	1m 15s
test (3.10, windows-latest)	1m 59s
test (3.11, ubuntu-latest)	1m 16s
test (3.11, windows-latest)	2m 30s
test (3.12, ubuntu-latest)	3m 0s
test (3.12, windows-latest)	4m 6s
combine coverage and check for 100%	6s
	23m 24s

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