refactored the `response.body` property to only parse the `responseBody` once, and to fallback to plain-text if a parsing error occurs
refactored the `response.body` property to only parse the `responseBody` once, and to fallback to plain-text if a parsing error occurs

BigstickCarpet/postman-bdd,BigstickCarpet/postman-bdd,BigstickCarpet/postman-bdd