tests

Merge branch 'main' into reduce-redundant-casts #137

Job	Run time
test_cygwin (39, windows-latest)	16m 24s
collateral (diffcov)	6m 28s
test (3.8, ubuntu-latest)	4m 19s
collateral (docs)	2m 8s
test (3.8, windows-latest)	11m 8s
collateral (check-extern)	10s
test (3.12, ubuntu-latest)	6m 18s
test (3.12, macos-latest)	6m 58s
test (3.12, windows-latest)	11m 46s
test (3.9, ubuntu-latest)	4m 9s
test (3.10, ubuntu-latest)	4m 2s
test (3.11, ubuntu-latest)	4m 1s
test (pypy3.10, ubuntu-latest, stdlib)	7m 41s
test (ubuntu-latest, 3.10, stdlib)	3m 51s
test (3.8, macos-13)	6m 13s
integration-test	0s
check	4s
release	0s
	1h 35m 40s

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