Add support for `axlearn` #3968

Job	Run time
metadata	1s
bump-manifest	14s
arm64 / build-base / build-base	3m 46s
amd64 / build-base / build-base	3m 17s
amd64 / build-jax / build-jax	18m 8s
arm64 / build-jax / build-jax	17m 24s
arm64 / build-axlearn / build-axlearn	7m 10s
amd64 / build-axlearn / build-axlearn	12m 52s
arm64 / collect-docker-tags	1s
arm64 / test-axlearn-eks	0s
arm64 / test-axlearn-fuji-models-eks	0s
amd64 / test-axlearn-fuji-models-eks	20m 46s
amd64 / test-axlearn-eks	18m 27s
amd64 / collect-docker-tags	1s
make-publish-configs	1s
merge-new-manifest	0s
finalize / workflow-badge	4s
finalize / report	3s
finalize / upload-badge	6s
finalize / publish-badge	4s
	1h 42m 25s

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