refactor(Telemetry): Normalize AWS request error codes

lib/aws/request.js

@@ -115,6 +115,11 @@ const getServiceInstance = memoize(
   }
 );
 
+const normalizerPattern = /(?<!^)([A-Z])/g;
+const normalizeErrorCodePostfix = (name) => {
+  return name.replace(normalizerPattern, '_$1').toUpperCase();
+};
+
 /** Execute request to AWS service
  * @param {Object|string} [service] - Description of the service to call
  * @prop [service.name] - Name of the service to call, support subclasses
@@ -198,13 +203,17 @@ async function awsRequest(service, method, ...args) {
             providerError: Object.assign({}, err, { retryable: false }),
           });
         }
+        const providerErrorCodeExtension = err.code ? normalizeErrorCodePostfix(err.code) : 'ERROR';
         throw Object.assign(
           new ServerlessError(
             process.env.SLS_DEBUG && err.stack ? `${err.stack}\n${'-'.repeat(100)}` : message,
-            err.code
+            `AWS_${normalizeErrorCodePostfix(service.name)}_${normalizeErrorCodePostfix(
+              method
+            )}_${providerErrorCodeExtension}`
           ),
           {
             providerError: err,
+            providerErrorCodeExtension,
           }
         );
       }