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)

Fix typo in train split name (#3751)

Update files from the datasets library (from 1.18.0)

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)