updated dataset_infos for version 0.3.0

updated to dataset v 0.3 + added test split (#1)

Add `language_bcp47` tag (#4753)

Align more metadata with other repo types (models,spaces) (#4607)

Remove config names as yaml keys (#4367)

Eval metadata batch 2 : Health Fact, Jigsaw Toxicity, LIAR, LJ Speech, MSRA NER, Multi News, NCBI Disease, Poem Sentiment (#4336)

Update files from the datasets library (from 1.16.0)

Update files from the datasets library (from 1.10.0)

Update files from the datasets library (from 1.7.0)