Do not support datasets that require manual download
Currently, datasets that require manual download show a weird error message due to a TypeError. See: https://huggingface.co/datasets/timit_asr/discussions/2
```
expected str, bytes or os.PathLike object, not NoneType
```

I think we should not support theses datasets, as we already do with private datasets.

EDIT: TODO:
- [x] Raise `DatasetManualDownloadError` from `config-parquet-and-info`
  - [x] #1309
- [x] Raise `DatasetManualDownloadError` from `config-split-names-from-streaming`
  - [x] #1315
- [ ] Propagate the error codes to the aggregator steps (config -> dataset, in this case) so that we can show the appropriate message on the Hub
Do not support datasets that require manual download: Currently, datasets that require manual download show a weird error message due to a TypeError. See: https://huggingface.co/datasets/timit_asr/discussions/2
```
expected str, bytes or os.PathLike object, not NoneType
```

I think we should not support theses datasets, as we already do with private datasets.

EDIT: TODO:
- [x] Raise `DatasetManualDownloadError` from `config-parquet-and-info`
  - [x] #1309
- [x] Raise `DatasetManualDownloadError` from `config-split-names-from-streaming`
  - [x] #1315
- [ ] Propagate the error codes to the aggregator steps (config -> dataset, in this case) so that we can show the appropriate message on the Hub