How to select dotnet version

[dearyangyu]

Describe the bug

How do I select the dotnet version when I create the project, the default is 6.0

Steps to reproduce

Create Project <TargetFramework>net6.0</TargetFramework>

Expected behaviour

<TargetFramework>net8.0</TargetFramework>

Template

Api、GrapgQL

.NET Boxed Version

7.4.0

Visual Studio Version

Visual Studio 2022

.NET Version

.Net8