fix DeprecationWarning: Attribute s is deprecated and will be removed… #490

Job	Run time
Linux / Python 3.8 / tox -e security	1s
Linux / Python 3.9 / tox -e security	1s
Linux / Python 3.10 / tox -e security	1s
Linux / Python 3.11 / tox -e security	1s
Linux / Python 3.10 / tox -e lint	47s
Linux / Python 3.8 / tox -e type-checking	1s
Linux / Python 3.9 / tox -e type-checking	1s
Linux / Python 3.10 / tox -e type-checking	1s
Linux / Python 3.11 / tox -e type-checking	1s
Linux / Python 3.8 / tox -e py38	1s
Linux / Python 3.8 / tox -e py38-no-ext	1s
Linux / Python 3.9 / tox -e py39	1s
Linux / Python 3.9 / tox -e py39-no-ext	1s
Linux / Python 3.10 / tox -e py310	1s
Linux / Python 3.10 / tox -e py310-no-ext	1m 5s
Linux / Python 3.11 / tox -e py311	1s
Linux / Python 3.12 / tox -e py312	1s
Linux / Python 3.11 / tox -e py311-no-ext	1s
Windows / Python 3.8 / tox -e py38-no-ext	1s
Windows / Python 3.9 / tox -e py39-no-ext	1s
Windows / Python 3.10 / tox -e py310-no-ext	1m 1s
Windows / Python 3.11 / tox -e py310-no-ext	1s
	3m 12s

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