build

Add `SaveDecisionPolicy` to better encapsulate various options around… #16073

Job	Run time
build-checkpoint (Python 3.10, jax=newest)	1m 10s
build-checkpoint (Python 3.11, jax=newest)	1m 8s
build-export (Python 3.10, jax=newest)	1m 47s
build-export (Python 3.11, jax=newest)	1m 34s
build-orbax-model (Python 3.10, jax=newest)	10s
build-checkpoint (Python 3.12, jax=newest)	1m 10s
build-export (Python 3.12, jax=newest)	1m 39s
build-orbax-model (Python 3.11, jax=newest)	12s
build-checkpoint (Python 3.10, jax=0.4.34)	1m 10s
build-export (Python 3.10, jax=0.4.34)	1m 42s
build-orbax-model (Python 3.12, jax=newest)	12s
build-checkpoint (Python 3.13, jax=nightly)	1m 24s
build-export (Python 3.12, jax=nightly)	1m 45s
build-orbax-model (Python 3.10, jax=0.4.34)	7s
build-orbax-model (Python 3.12, jax=nightly)	11s
	15m 21s

Provide feedback