Fallback to other image formats if JPEG generation fails

[mariosasko]

Fix #191

[severo]

Thanks! I'm adding tests, that I will send her

[severo]

After merging, refresh the affected datasets with:

DATASETS=(huggingface/documentation-images cppe-5 huggingface/task-page-images dog/punks elonmuskceo/wordle facebook/winoground TheoMrc/Zebrafish-AChE-Staining kingabzpro/savtadepth-flags-V2 loubnabnl/repo-images Chris1/cityscapes huggingnft/dooggies yogeshkulkarni/MidcurveNN huggan/few-shot-skulls xiaj/ds_test huggan/few-shot-flat-colored-patterns sudo-s/herbier_mesuem AlekseyKorshuk/dooggies huggingnft/boredapeyachtclub huggingnft/mutant-ape-yacht-club sbusso/fluf DeuxAllemagnes/Images evaluate/media wikimedia/wit_base AlekseyKorshuk/fluf-world-scenes-and-sounds araanbranco/cryptoweebs huggingnft/etherbears huggingnft/theshiboshis huggingnft/trippytoadznft imadd/water_dataset lukasmasuch/test lvwerra/repo-images laion/laion-synthetic-115m coyotte508/dataset Chris1/GTA5 Guldeniz/trimaps_dataset huggan/few-shot-moongate huggingnft/alpacadabraz MarlaR/dalle nateraw/hf-hub-walkthrough-assets AlekseyKorshuk/cryptopunks jakka/warehouse_part1)
for dataset in ${DATASETS[@]}; do curl -X POST https://datasets-server.huggingface.co/webhook -H 'Content-Type: application/json' -d '{"update": "datasets/'$dataset'"}'; done;

See #191 (comment)

[severo]

thanks!

[severo]

See #367 for the failures in the e2e tests. They run perfectly locally (I swear!)