fix ScyllaCloudConfigTests for python 3.12 #1190

Job	Run time
Build source distribution	11s
Build wheels ubuntu-20.04 (x86_64)	19m 57s
Build wheels ubuntu-20.04 (PyPy)	1m 12s
Build extra arch aarch64 wheels	1h 58m 17s
Build wheels windows-latest (win64)	22m 21s
Build wheels windows-latest (PyPy)	4m 38s
Build wheels macos-latest (all)	6h 0m 14s
Build wheels macos-13 (all)	28m 40s
Build wheels macos-latest (PyPy)	59s
upload_pypi	0s
	9h 16m 29s

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