ml.net installation isssue

**System Information:**
- CLI Version: ubuntu 22.04 linux

**Describe the bug**
- first installation

**To Reproduce**
Steps to reproduce the behavior:
run below command on cli in linux
dotnet tool install -g mlnet-linux-x64

**Expected behavior**
~$ dotnet tool install -g mlnet-linux-x64
/tmp/77a101f6-eed5-4f71-b45e-6a8329d761c0/restore.csproj : error NU1202: Package mlnet-linux-x64 16.18.2 is not compatible with net6.0 (.NETCoreApp,Version=v6.0) / any. Package mlnet-linux-x64 16.18.2 supports: net8.0 (.NETCoreApp,Version=v8.0) / any
The tool package could not be restored.
Tool 'mlnet-linux-x64' failed to install. This failure may have been caused by:

* You are attempting to install a preview release and did not use the --version option to specify the version.
* A package by this name was found, but it was not a .NET tool.
* The required NuGet feed cannot be accessed, perhaps because of an Internet connection problem.
* You mistyped the name of the tool.

For more reasons, including package naming enforcement, visit https://aka.ms/failure-installing-tool

Riproduci il comando segnalato `dotnet tool install -g mlnet-linux-x64` su Ubuntu 22.04 e analizza l’output del ripristino NU1202, che mostra che la versione del pacchetto 16.18.2 richiede net8.0, mentre il ripristino è destinato a net6.0. Il lavoro è completato quando il percorso documentato di prima installazione ha esito positivo per l’ambiente segnalato.

Scritto dal modello di indicizzazione a partire dal testo della issue.