Changes to Update knowledge base

the request property kbName became required

added the pattern ^(?![\s\S]*?(?:(?<!\w)%(?:\d{1,10}\$)?[#0\-+ ]{0,10}(?:\d{1,10})?(?:\.\d{1,10})?(?:h{1,2}|l{1,2}|L|z|j|t)?[nsxXp]))[\s\S]*?\S to the request property kbName

added the media type application/x-www-form-urlencoded to the request body

added the non-success response with the status 409

added the optional property error/requestId to the response with the 400 status

added the optional property error/requestId to the response with the 401 status

added the optional property error/requestId to the response with the 403 status

added the optional property error/requestId to the response with the 404 status

added the optional property error/requestId to the response with the 500 status

added the optional property error/requestId to the response with the 503 status

endpoint added