tests

Fix a couple typos found by codespell #5526

Job	Run time
test_cygwin (39, windows-latest)	12m 53s
collateral (diffcov)	4m 49s
test (3.8, ubuntu-latest)	3m 58s
collateral (docs)	1m 48s
test (3.8, windows-latest)	11m 21s
test (3.12, ubuntu-latest)	5m 9s
test (3.12, macos-latest)	4m 12s
test (3.12, windows-latest)	13m 11s
test (3.9, ubuntu-latest)	3m 49s
test (3.10, ubuntu-latest)	4m 2s
test (3.11, ubuntu-latest)	4m 0s
test (pypy3.10, ubuntu-latest, stdlib)	11m 50s
test (ubuntu-latest, 3.10, stdlib)	4m 32s
test (3.8, macos-13)	8m 12s
integration-test	0s
check	1s
release	0s
	1h 33m 47s

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