Get data source

curl --request GET \
  --url https://api.oneofnone.io/v1/collections/{slug}/data/source \
  --header 'x-api-key: <api-key>'

{
  "id": 123,
  "collection_id": "<string>",
  "source_type": "<string>",
  "row_count": 123,
  "status": "<string>",
  "created_at": "<string>",
  "source_config": {},
  "column_mappings": {},
  "column_headers": [
    "<string>"
  ],
  "media_id": 123,
  "updated_at": "<string>"
}