support minimum gemma 2 #2872

Job	Run time
check-python-style	10s
build-and-push-docker-images	29m 42s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	6m 10s
build-python-wheels (ubuntu-20.04, auto64)	35m 26s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	5m 30s
build-and-test-cpp-aarch64 (openblas)	4m 17s
build-python-wheels (windows-2019, auto64)	47m 0s
build-python-wheels (ubuntu-20.04, aarch64)	1h 19m 12s
build-python-wheels (macos-12, arm64)	7m 42s
build-and-deploy-docs	29s
test-python-wheels (ubuntu-20.04)	9m 40s
test-python-wheels (windows-2019)	3m 57s
publish-python-wheels-on-pypi	0s
	3h 49m 15s

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