use msbuild for CI

.github/workflows/dotnet.yml

@@ -12,8 +12,15 @@ on:
 jobs:
   build:
 
-    runs-on: windows-latest
+    strategy:
+      matrix:
+        configuration: [Debug, Release]
 
+    # 2019 for Microsoft.Net.Component.3.5.DeveloperTools
+    runs-on: windows-2019
+    env:
+      NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+
     steps:
     - name: Checkout
       uses: actions/checkout@v4
@@ -22,10 +29,26 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.0.x
+        global-json-file: csharp/global.json
+        cache: true
+    - name: Setup MSBuild.exe
+      uses: microsoft/setup-msbuild@v2
+
     - name: Restore dependencies
-      run: dotnet restore
+      run: msbuild /t:Restore /p:Configuration=$env:Configuration
+      env:
+        Configuration: ${{ matrix.configuration }}
+
     - name: Build
-      run: dotnet build --no-restore
+      run: msbuild /t:Build /p:Configuration=$env:Configuration
+      env:
+        Configuration: ${{ matrix.configuration }}
+
+# dotnet SDK can't find net30
+# error MSB3644: The reference assemblies for .NETFramework,Version=v3.0 were not found.
+    # - name: Restore dependencies
+    #   run: dotnet restore
+    # - name: Build
+    #   run: dotnet build --no-restore
     # - name: Test
     #   run: dotnet test --no-build --verbosity normal