[ECS][Fargate] [request]: Support Windows platform family change

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**Tell us about your request**
Allow for Windows Fargate container platform family version to be upgraded in place.

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

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
I recently tried to change an ECS Fargate service from Windows Server 2019 Core to Windows Server 2022 Core and the deployment of the task definition with the new version failed to start any tasks and I had to rollback to a different task definition with the older platform specified.

**Are you currently working around this issue?**
We paused our upgrade for now, but will need to delete and re-create the services if we proceed without this issue resolved.