SageMaker config stopped working in Accelerate version 0.29+

[ivan-khvostishkov]

System Info

The `enable_cpu_affinity` property is missing in `SageMakerConfig` class:

https://github.com/huggingface/accelerate/blob/v0.30.0/src/accelerate/commands/config/config_args.py#L228-L243

But this property is expected by the config parser:

https://github.com/huggingface/accelerate/blob/v0.30.0/src/accelerate/commands/config/config_args.py#L148-L155

As a result, SageMaker config doesn't parse anymore producing the exception:


ValueError: The config file at .../.cache/huggingface/accelerate/default_config.yaml had unknown keys (['enable_cpu_affinity']), please try upgrading your `accelerate` version or fix (and potentially remove) these keys from your config file.

### Information

- [ ] The official example scripts
- [ ] My own modified scripts

### Tasks

- [ ] One of the scripts in the examples/ folder of Accelerate or an officially supported `no_trainer` script in the `examples` folder of the `transformers` repo (such as `run_no_trainer_glue.py`)
- [ ] My own task or dataset (give details below)

### Reproduction

1. Create config with `compute_environment: AMAZON_SAGEMAKER` .
2. Run `accelerate config update`

### Expected behavior

Message `Sucessfully updated the configuration file`

[muellerzr]

Thanks @ivan-khvostishkov, can you test it out via this PR? #2753

You can do pip install git+https://github.com/huggingface/accelerate@fix-sagemaker