Support ltsc 2025 images (Nano, Servercore and Server)

[jpatigny]

Summary of the new feature / enhancement

Add images for windows server ltsc2025 on all 3 flavours of images (nanoserver, servercore and server)

All upstream images are available 👍🏻

upstream image	powershell image
mcr.microsoft.com/windows/server:ltsc2025	mcr.microsoft.com/powershell:windowsserver-ltsc2025
mcr.microsoft.com/windows/servercore:ltsc2025	mcr.microsoft.com/powershell:windowsservercore-ltsc2025
mcr.microsoft.com/windows/nanoserver:ltsc2025	mcr.microsoft.com/powershell:nanoserver-ltsc2025

Proposed technical implementation details (optional)

No response