Support PowerShell Core Host

[pauby]

PowerShell Core (which I've called it here so it's clear what we are talking about) has been available since 2018 and is the future of PowerShell. Chocolatey package scripts require being written to support Windows PowerShell.

While Windows PowerShell is included in Windows Server 2025, which is supported until 2034, we should support PowerShell Core when possible.

This issue will keep track of other raised issues around PowerShell Core:

• Upgrade PowerShell Host to PowerShell 7+ (Core) #1990
• Migrate to PowerShell Core as the main command runner #3590

These are also relevant:

• Consider having Chocolatey.lib target .NET standard instead of .NET framework  #2173