Cannot load dataset from s3

Hello,
When I try to use DataConfig to load my dataset from S3, like so...
```python
DataConfig(
dataset_name='my-dataset',
dataset_uri='s3://my-bucket/some/file.jsonl'
# rest of config...
)
```

I get the following error:
```
ArrowInvalid: Expected a local filesystem path, got a URI: 's3://my-bucket/some/file.jsonl'
```

The [documentation](https://aws.github.io/fmeval/fmeval.html?search=dataconfig) states that
> dataset_uri: either a local path or s3 URI representing where the dataset is stored

But it seems like this is not the case.

Start at DataConfig's handling of dataset_uri and reproduce the issue with the documented s3://my-bucket/some/file.jsonl example. Trace the path that produces ArrowInvalid and verify the documented S3 URI behavior works without that error.

Written by the indexing model from the issue text.