Windows Docker images are 5GB+

[shahmishal]

Investigate: How can we slim down the Windows Docker images to help speed up CI system (e.g. GitHub Actions).

Review the current Dockerfile and understand if it's following best practices for Windows.
https://learn.microsoft.com/en-us/virtualization/windowscontainers/manage-docker/optimize-windows-dockerfile

[compnerd]

We are currently following best practices outlined on Microsoft's documentation. There are currently 2 sources of size bloat:

1. we need the full image of Windows to run all the tools
2. the toolchain size itself is large (~3-3.5G installed image for the toolchain)