fix: carry user options from constructor to axios parameters

This allows users to set parameters on the axios config object using the service constructor

lib/requestwrapper.ts

@@ -281,7 +281,7 @@ export function sendRequest(parameters, _callback) {
     httpsAgent: new https.Agent({ rejectUnauthorized }),
   };
 
-  axios(requestParams)
+  axios(extend(true, {}, options, requestParams))
     .then(res => {
       // the other sdks use the interface `result` for the body
       _callback(null, res.data, res);