Work around dotnet publish bug

[andyleejordan]

This fixes PowerShell/vscode-powershell#3395

[andyleejordan]

I kinda think I've hit the same issue as someone else hit with msbuild (which if I remember correctly is what dotnet became a port of): dotnet/standard#1334

[andyleejordan]

I also tried playing around with the various options like --self-contained, since this is a library and we moved from .NET 2.1 to 3.1+ and that behavior changed, but dotnet publish still never included netstandard.dll once the CLI was on 6.0.

[andyleejordan]

Linking regression report upstream: dotnet/sdk#18101