Changes to Create group

added the new not_implemented enum value to the code response property for the response status 400

added the new not_implemented enum value to the code response property for the response status 500

the created_at response's property format changed from date-time to no format for status 201

the updated_at response's property format changed from date-time to no format for status 201

removed the optional property details from the response with the 400 status

removed the optional property details from the response with the 500 status

added the new too_many_requests enum value to the code response property for the response status 400

added the new too_many_requests enum value to the code response property for the response status 500

removed the optional property error from the response with the 400 status

removed the optional property error from the response with the 500 status

removed the optional property success from the response with the 400 status

removed the optional property success from the response with the 500 status

added the optional property code to the response with the 400 status

added the optional property code to the response with the 500 status

added the optional property details to the response with the 400 status

added the optional property details to the response with the 500 status

added the optional property http_status_code to the response with the 400 status

added the optional property http_status_code to the response with the 500 status

added the optional property message to the response with the 400 status

added the optional property message to the response with the 500 status