Small improvements #2978

Job	Run time
build-and-push-docker-images	30m 27s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	9m 2s
build-and-test-cpp-aarch64 (openblas)	4m 58s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	6m 6s
build-python-wheels (ubuntu-20.04, auto64)	36m 22s
check-python-style	7s
build-python-wheels (windows-2019, auto64)	51m 41s
build-python-wheels (ubuntu-20.04, aarch64)	1h 39m 13s
build-python-wheels (macos-13, arm64)	8m 55s
test-python-wheels (ubuntu-20.04)	3m 54s
test-python-wheels (windows-2019)	3m 54s
build-and-deploy-docs	0s
publish-python-wheels-on-pypi	0s
	4h 14m 39s

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