chore: log error for stackUpdateComplete

Author: 0.618

packages/amplify-provider-awscloudformation/src/iterative-deployment/deployment-manager.ts

@@ -490,9 +490,18 @@ export class DeploymentManager {
     assert(stackParams.stackName, 'stackName should be passed to waitForDeployment');
 
     await cfnClient
-      .waitFor('stackUpdateComplete', {
-        StackName: stackParams.stackName,
-      })
+      .waitFor(
+        'stackUpdateComplete',
+        {
+          StackName: stackParams.stackName,
+        },
+        (err, data) => {
+          if (err) {
+            throw err;
+          }
+          return data;
+        },
+      )
       .promise();
   };