bump version 4.3.1 (#1722) #2780

Job	Run time
build-and-test-cpp-aarch64 (openblas)	2m 18s
build-python-wheels (ubuntu-20.04, auto64)	2m 19s
build-python-wheels (macos-11, auto64)	2m 1s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	2m 15s
build-and-push-docker-images	2m 16s
build-python-wheels (windows-2019, auto64)	2m 18s
check-python-style	18s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	2m 15s
build-python-wheels (ubuntu-20.04, aarch64)	2m 16s
build-and-test-cpp-x86_64 (macos-11, mkl)	2m 4s
build-python-wheels (macos-11, arm64)	2m 3s
build-and-test-cpp-x86_64 (macos-11, dnnl)	2m 13s
build-and-deploy-docs	1s
test-python-wheels	1s
publish-python-wheels-on-pypi	1s
	24m 39s

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