fix(bucket-utils): small fix for async race condition

ensure that deletePublicAccessBlock is allowed to run before moving on from bucket creation

lib/bucket-utils.js

@@ -96,7 +96,7 @@ function createBucket(aws, bucketName) {
   };
 
   return aws.request('S3', 'createBucket', params).then(() => {
-    aws.request('S3', 'deletePublicAccessBlock', {
+    return aws.request('S3', 'deletePublicAccessBlock', {
       Bucket: bucketName
     });
   });