dotnet 修复 GitHub Action 构建过程提示 NETSDK1127 错误

error NETSDK1127: The targeting pack Microsoft.WindowsDesktop.App.WindowsForms is not installed. Please restore and try again. [D:\a\X\X\NewLife.Core\NewLife.Core.csproj::TargetFramework=net6.0-windows]

    - name: Setup dotNET
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: |
          6.0.x
          7.0.x
          8.x

name: BuildAndTest

on: [push]

jobs:
  build:

    runs-on: windows-latest

    steps:
    - uses: actions/checkout@v1
    - name: Setup dotNET
      uses: actions/setup-dotnet@v3
      with:
        dotnet-version: |
          6.0.x
          7.0.x
          8.x

    - name: Build
      run: dotnet build --configuration Release

    - name: Test
      run: dotnet test --configuration Release