Updates artifact upload action and target framework.

Updates the upload-artifact action version and modifies the target framework in CSharpReference.cs.

Author: Keboo

.github/workflows/generate.yml

@@ -26,7 +26,7 @@ jobs:
         working-directory: generator
         run: dotnet run -- cli refout
       - name: Upload Artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v4
         with:
           name: cli-${{ matrix.os }}
           path: generator/refout/*

generator/CSharpReference.cs

@@ -37,7 +37,7 @@ public static async Task UpdateCSharpReference(string outputCsharpReference)
 
         ZipFile.ExtractToDirectory(velopackStream, extractedVelopack);
 
-        var velopackDll = Path.Combine(extractedVelopack, "lib", "netstandard2.0", "Velopack.dll");
+        var velopackDll = Path.Combine(extractedVelopack, "lib", "net9.0", "Velopack.dll");
 
         var p = Process.Start("mddocs", ["apireference", "-a", velopackDll, "-o", outputCsharpReference]);
         await p.WaitForExitAsync();