tests

Update validate-pyproject to 0.23.0 #6032

Job	Run time
test_cygwin (39, windows-latest)	15m 1s
collateral (diffcov)	5m 2s
test (3.9, ubuntu-latest)	4m 21s
collateral (docs)	2m 14s
test (3.9, windows-latest)	11m 5s
test (3.13, ubuntu-latest)	4m 36s
test (3.13, macos-latest)	4m 20s
test (3.13, windows-latest)	12m 42s
test (3.10, ubuntu-latest)	4m 28s
test (3.11, ubuntu-latest)	4m 7s
test (3.12, ubuntu-latest)	5m 21s
test (3.14, ubuntu-latest)	6m 22s
test (pypy3.10, ubuntu-latest, stdlib)	16m 22s
test (ubuntu-latest, 3.10, stdlib)	4m 19s
integration-test	0s
check	2s
release	0s
	1h 40m 22s

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