tests

Add warning for deprecated metadata fields #6048

Job	Run time
collateral (diffcov)	5m 2s
test (3.9, ubuntu-latest)	4m 15s
collateral (docs)	2m 15s
test_cygwin (39, windows-latest)	14m 7s
test (3.9, windows-latest)	11m 12s
test (3.13, ubuntu-latest)	4m 43s
test (3.13, macos-latest)	4m 30s
test (3.13, windows-latest)	10m 8s
test (3.10, ubuntu-latest)	4m 42s
test (3.11, ubuntu-latest)	4m 1s
test (3.12, ubuntu-latest)	5m 14s
test (3.14, ubuntu-latest)	6m 22s
test (pypy3.10, ubuntu-latest, stdlib)	16m 47s
test (ubuntu-latest, 3.10, stdlib)	4m 12s
integration-test	0s
check	1s
release	0s
	1h 37m 31s

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