Use more HTTP error status codes
Instead of 400, use the relevant error status codes: 401, 403, 404, etc.

See https://github.com/huggingface/datasets-server/issues/466#issuecomment-1195528239
Use more HTTP error status codes: Instead of 400, use the relevant error status codes: 401, 403, 404, etc.

See https://github.com/huggingface/datasets-server/issues/466#issuecomment-1195528239