Fix test warnings #308

Job	Run time
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_x86_64, x86_64, 3.9, 2.0.*)	3m 1s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_x86_64, x86_64, 3.10, 2.0.*)	3m 4s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_x86_64, x86_64, 3.11, 2.0.*)	3m 3s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_x86_64, x86_64, 3.12, 2.0.*)	3m 10s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_aarch64, aarch64, 3.9, 2.0.*)	29m 7s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_aarch64, aarch64, 3.10, 2.0.*)	28m 58s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_aarch64, aarch64, 3.11, 2.0.*)	29m 12s
build (ubuntu-latest, linux, quay.io/pypa/manylinux2014_aarch64, aarch64, 3.12, 2.0.*)	29m 32s
build (macos-11, mac, 10.9, x86_64, 3.9, 2.0.*)	1s
build (macos-11, mac, 10.9, x86_64, 3.10, 2.0.*)	1s
build (macos-11, mac, 10.9, x86_64, 3.11, 2.0.*)	1s
build (macos-11, mac, 10.9, x86_64, 3.12, 2.0.*)	1s
build (macos-14, mac, 11.0, arm64, 3.9, 2.0.*)	2m 7s
build (macos-14, mac, 11.0, arm64, 3.10, 2.0.*)	2m 14s
build (macos-14, mac, 11.0, arm64, 3.11, 2.0.*)	2m 13s
build (macos-14, mac, 11.0, arm64, 3.12, 2.0.*)	2m 7s
build (windows-2019, windows, x86_64, 3.9, 2.0.*)	5m 57s
build (windows-2019, windows, x86_64, 3.10, 2.0.*)	5m 46s
build (windows-2019, windows, x86_64, 3.11, 2.0.*)	5m 46s
build (windows-2019, windows, x86_64, 3.12, 2.0.*)	5m 47s
test	1s
docs	1s
publish-wheels	1s
publish-docs	1s
	2h 41m 12s

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