Fix a couple typos found by codespell #3336

Job	Run time
test_cygwin (39, windows-latest)	20m 1s
docs	56s
test (3.8, ubuntu-latest)	6m 7s
test (3.8, macos-latest)	10m 47s
test (3.8, windows-latest)	12m 18s
test (3.11, ubuntu-latest)	6m 41s
test (3.11, macos-latest)	8m 41s
test (3.11, windows-latest)	14m 4s
test (3.12, ubuntu-latest)	11m 8s
test (3.12, macos-latest)	12m 22s
test (3.12, windows-latest)	21m 32s
test (3.9, ubuntu-latest)	8m 10s
test (3.10, ubuntu-latest)	5m 46s
test (pypy3.9, ubuntu-latest, stdlib)	9m 21s
test (ubuntu-latest, 3.10, stdlib)	7m 23s
integration-test	0s
check	2s
release	0s
	2h 35m 19s

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