S3 upload errors when the folder contains symlinks

**Describe the bug**

**To reproduce**

**Expected behavior**

**Screenshots**

**Your Environment**
- VSTS or Azure Devops (on-prem or cloud based?):
- VSTS or Azure Devops version:
- AWS VSTS Tools version:

**Additional context**

The issue provides no file, test, reproduction steps, environment details, or expected behavior. Start by locating the TypeScript S3 upload entry point in the AWS Toolkit for Azure DevOps and reproduce the failure with a folder containing symlinks; done means the upload behavior is defined and the failure is covered by a regression test.

Written by the indexing model from the issue text.