build

Merge pull request #527 from ufownl:feature/gemma2_secondary_eos #2

Job	Run time
bazel	9m 27s
ubuntu-latest (make) Release	7m 46s
macos-latest (make) Release	1m 45s
ubuntu-20.04 (make) Release	2s
windows-latest (windows) Release	16m 18s
	35m 18s

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