[ECS] [request]: Propagate tags from task to ENI when using vpc networking mode

**Tell us about your request**
Propagate the tags applied to a task to the ENI when using VPC networking for tasks

**Which service(s) is this request for?**
ECS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
When there is a need to track the logical owner / service of an IP. If the information is not available on the ENI other option is to poll the ECS-API on a regular basis or react to cloudtrail events and call the ECS-APIs on-demand. This can lead to heavy API usage and throttling.

**Are you currently working around this issue?**
Working around with polling the ECS-APIs on regular basis, risking missing some IP for short-lived tasks.

**Additional context**

**Attachments**

Start by reviewing the ECS request for VPC networking and how task tags relate to ENIs; the payload names no source files, tests, or entry points. Done would mean task tags are propagated to the ENI so ownership can be tracked without polling ECS APIs.

Written by the indexing model from the issue text.