Replace deprecated pytest.warns(None) #763

Job	Run time
check	24s
check_docs	51s
Ubuntu / 3.12 regression tests	8m 0s
Ubuntu / 3.8 unit tests	1m 19s
build_docs	2m 36s
MacOS / 3.12 regression tests	6m 51s
Ubuntu / 3.9 unit tests	1m 23s
Windows / 3.12 regression tests	12m 2s
Ubuntu / 3.10 unit tests	1m 21s
Ubuntu / 3.8 regression tests	6m 11s
Ubuntu / 3.11 unit tests	1m 18s
Ubuntu / 3.10 regression tests	6m 14s
Ubuntu / 3.12 unit tests	1m 36s
Ubuntu / 3.11 regression tests	7m 2s
Ubuntu / 3.13.0-alpha - 3.13 unit tests	1m 29s
Ubuntu / 3.13.0-alpha - 3.13 regression tests	8m 10s
Ubuntu / pypy-3.9 unit tests	2m 15s
Ubuntu / pypy-3.9 regression tests	16m 2s
MacOS / 3.8 unit tests	1m 15s
Ubuntu / 3.12 regression tests (docutils)	13m 52s
MacOS / 3.9 unit tests	47s
Ubuntu / 3.12 regression tests (Sphinx)	9m 27s
MacOS / 3.10 unit tests	1m 2s
Ubuntu / 3.9 regression tests (Sphinx)	1m 13s
MacOS / 3.11 unit tests	45s
MacOS / 3.12 unit tests	44s
MacOS / 3.13.0-alpha - 3.13 unit tests	1m 26s
MacOS / pypy-3.9 unit tests	1m 30s
Windows / 3.8 unit tests	2m 46s
Windows / 3.9 unit tests	2m 15s
Windows / 3.10 unit tests	2m 47s
Windows / 3.11 unit tests	2m 16s
Windows / 3.12 unit tests	2m 37s
Windows / 3.13.0-alpha - 3.13 unit tests	3m 46s
Windows / pypy-3.9 unit tests	3m 25s
Ubuntu / 3.12 unit tests (Sphinx)	6m 42s
Ubuntu / 3.9 unit tests (Sphinx)	1m 12s
Update docs versions JSON	8s
check-tag	0s
publish-develop	0s
publish-release	0s
	2h 24m 59s

Provide feedback