Changes to Get Upload Url

request property visibility/anyOf[subschema #1] was restricted to a list of enum values

the dataset_name request property's maxLength was set to 128

added the new private enum value to the request property visibility/anyOf[subschema #1]

added the new public enum value to the request property visibility/anyOf[subschema #1]

added the new optional request property content_length

added the new optional request property sha256

the upload_instructions response's property default value changed from Upload file via HTTP PUT to presigned_url then call /datasets/upload/process with dataset_id format and schema (if applicable) to PUT the raw file bytes to presigned_url and send every header in upload_headers with exactly its value: always Content-Type: application/octet-stream plus Content-Length and x-amz-checksum-sha256 when listed. A missing or different header is refused with 403. Then call POST /datasets/upload/process with dataset_id. for the status 200

added the required property upload_headers to the response with the 200 status

the dataset_name request property's minLength was increased from 0 to 1

api operation id get_upload_url_datasets_upload_url_post removed and replaced with get_upload_url_v1_datasets_upload_url_post

endpoint added