Update validate-pyproject to 0.23.0 #5851

Job	Run time
collateral (diffcov)	5m 35s
collateral (docs)	2m 10s
test_cygwin (39, windows-latest)	13m 38s
test (3.9, ubuntu-latest)	4m 9s
test (3.9, macos-latest)	4m 35s
test (3.9, windows-latest)	8m 31s
test (3.13, ubuntu-latest)	5m 17s
test (3.13, macos-latest)	4m 33s
test (3.13, windows-latest)	9m 56s
test (3.10, ubuntu-latest)	4m 20s
test (3.11, ubuntu-latest)	4m 16s
test (3.12, ubuntu-latest)	6m 8s
test (3.14, ubuntu-latest)	6m 21s
test (pypy3.10, ubuntu-latest, stdlib)	16m 47s
test (ubuntu-latest, 3.10, stdlib)	4m 12s
integration-test	0s
check	4s
release	0s
	1h 40m 32s

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