Can't copy parquet files with path that can be URL encoded
we get this error for bigcode/the-stack in config-parquet-and-info

```
huggingface_hub.utils._errors.EntryNotFoundError: Cannot copy data/c%2B%2B/train-00000-of-00214.parquet at revision 349a71353fd5868fb90b593ef09e311379da498a: file is missing on repo.
```
Can't copy parquet files with path that can be URL encoded: we get this error for bigcode/the-stack in config-parquet-and-info

```
huggingface_hub.utils._errors.EntryNotFoundError: Cannot copy data/c%2B%2B/train-00000-of-00214.parquet at revision 349a71353fd5868fb90b593ef09e311379da498a: file is missing on repo.
```