Changes to Create transcription

the response property error/code became nullable for the status 400

the response property error/code became nullable for the status 401

the response property error/code became nullable for the status 402

the response property error/code became nullable for the status 403

the response property error/code became nullable for the status 410

the response property error/code became nullable for the status 413

the response property error/code became nullable for the status 429

the response property error/code became nullable for the status 500

the response property error/code became nullable for the status 502

the response property error/code became nullable for the status 503

the response property error/code became nullable for the status 504

added the non-success response with the status 404

added the non-success response with the status 408

added the non-success response with the status 415

added the non-success response with the status 529