June 25, 2021, File Storage Security—Removes `CopyZipsDestBucket` and related resources
in scanner stacks and storage stacks. Also removes `S3BucketPrefix` parameter, which
is used as the prefix of `CopyZipsDestBucket` name. This functionality requires a
stack update.
This update enables customers who do not have permissions to create S3 buckets to
deploy their stacks (since it removes the need to create `CopyZipsDestBucket`).