Delete legacy JSON metadata (#1)

add dataset_info in dataset metadata

remove dummmy data

fix task_ids

Align/fix license metadata info (#4613)

Update datasets task tags to align tags with models (#4067)

Update files from the datasets library (from 1.18.0)

Update files from the datasets library (from 1.16.0)

Update files from the datasets library (from 1.7.0)

Update files from the datasets library (from 1.6.0)

Update files from the datasets library (from 1.3.0)

Update files from the datasets library (from 1.2.0)