tests

Fix Ruff PT006 issues (#4796) #6030

Job	Run time
test_cygwin (39, windows-latest)	13m 56s
collateral (diffcov)	5m 6s
test (3.9, ubuntu-latest)	4m 24s
collateral (docs)	2m 14s
test (3.9, windows-latest)	10m 12s
test (3.13, ubuntu-latest)	4m 37s
test (3.13, macos-latest)	4m 15s
test (3.13, windows-latest)	13m 3s
test (3.10, ubuntu-latest)	4m 27s
test (3.11, ubuntu-latest)	3m 59s
test (3.12, ubuntu-latest)	5m 5s
test (3.14, ubuntu-latest)	6m 10s
test (pypy3.10, ubuntu-latest, stdlib)	16m 27s
test (ubuntu-latest, 3.10, stdlib)	4m 24s
integration-test	0s
check	2s
release	0s
	1h 38m 21s

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