Commons Exports not Properly Exported

[ahmehri]

Describe the issue

Exports of @commercetools-test-data/commons are not properly exported.

To Reproduce
Steps to reproduce the behavior:

1. Import e.g Reference, import { Reference } from '@commercetools-test-data/commons';
2. Access e.g its builder

Expected behavior

It should be possible to access the builder on Reference.random.

Current behavior

The builder is accessible on Reference.default.random.

Screenshots

Additional context

The problem is related to all exports except LocalizedString, and maybe others. It's also reproducible with Initiator.