[BUGFIX] Solving mismatched checksum issue for the LinCE dataset (#539)
Thanks a lot for that!
The line you are mentioning is a bug indeed, do you mind fixing it at the same time? No worries! 

I pushed right away the fix, but then I realized that the master branch already had it, so I ended up merging the master branch with lince locally and then overwriting the previous commit in origin/lince. Hopefully, this is not too messy :)

Hi,

I have added the updated `dataset_infos.json` file for the LinCE benchmark. This update is to fix the mismatched checksum bug #539 for one of the datasets in the LinCE benchmark. To update the file, I run this command from the nlp root directory:

```
python nlp-cli test ./datasets/lince --save_infos --all_configs
```

**NOTE**: I needed to  change [this line](https://github.com/huggingface/nlp/blob/master/src/nlp/commands/dummy_data.py#L8) from: `from .utils.logging import get_logger` to `from nlp.utils.logging import get_logger`, otherwise the script was not able to import `get_logger`. However, I did not include that in this PR since that could have been just my environment (and another PR could be fixing this already if it is actually an issue).