tests

Ruff: enable all pyflakes and perf rules #5299

Job	Run time
test_cygwin (39, windows-latest)	14m 14s
test (3.8, ubuntu-latest)	4m 3s
collateral (diffcov)	5m 36s
test (3.8, windows-latest)	20m 38s
collateral (docs)	2m 4s
test (3.12, ubuntu-latest)	5m 21s
test (3.12, macos-latest)	5m 18s
test (3.12, windows-latest)	12m 33s
test (3.9, ubuntu-latest)	4m 34s
test (3.10, ubuntu-latest)	4m 33s
test (3.11, ubuntu-latest)	4m 22s
test (pypy3.10, ubuntu-latest, stdlib)	16m 42s
test (ubuntu-latest, 3.10, stdlib)	4m 19s
test (3.8, macos-13)	6m 11s
integration-test	0s
check	4s
release	0s
	1h 50m 32s

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