error downloading bigscience-catalogue-lm-data/lm_en_wiktionary_filtered
## Describe the bug
Error generated when attempting to download dataset

## Steps to reproduce the bug
```python
from datasets import load_dataset

dataset = load_dataset("bigscience-catalogue-lm-data/lm_en_wiktionary_filtered")
```

## Expected results
A clear and concise description of the expected results.

## Actual results
```
ExpectedMoreDownloadedFiles               Traceback (most recent call last)

[<ipython-input-62-4ac5cf959477>](https://localhost:8080/#) in <module>()
      1 from datasets import load_dataset
      2 
----> 3 dataset = load_dataset("bigscience-catalogue-lm-data/lm_en_wiktionary_filtered")

3 frames

[/usr/local/lib/python3.7/dist-packages/datasets/utils/info_utils.py](https://localhost:8080/#) in verify_checksums(expected_checksums, recorded_checksums, verification_name)
     31         return
     32     if len(set(expected_checksums) - set(recorded_checksums)) > 0:
---> 33         raise ExpectedMoreDownloadedFiles(str(set(expected_checksums) - set(recorded_checksums)))
     34     if len(set(recorded_checksums) - set(expected_checksums)) > 0:
     35         raise UnexpectedDownloadedFile(str(set(recorded_checksums) - set(expected_checksums)))

ExpectedMoreDownloadedFiles: {'/home/leandro/catalogue_data/datasets/lm_en_wiktionary_filtered/data/file-01.jsonl.gz', '/home/leandro/catalogue_data/datasets/lm_en_wiktionary_filtered/data/file-01.jsonl.gz.lock'}
```


## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: 1.18.3
- Platform: Linux-5.4.188+-x86_64-with-Ubuntu-18.04-bionic
- Python version: 3.7.13
- PyArrow version: 6.0.1
