[Tune] How to turn off checkpointing for testing

Hi @max_ronda, what happens if you set in your CheckpointConfigǹum_to_keep=0`? Like this:

from ray import air, tune
tuner = tune.Tuner(
    my_trainable,
    run_config=air.RunConfig(
       checkpoint_config=air.CheckpointConfig(
          num_to_keep=0,
       )
    )