Update dotnet-desktop.yml

.github/workflows/dotnet-desktop.yml

@@ -56,7 +56,7 @@ jobs:
     - name: Upload build artifacts
       uses: actions/upload-artifact@v3
       with:
-        name: IoTSharp_$env:Configuration_$env:PublishProfile
+        name: IoTSharp_${{$env:Configuration}}_${{$env:PublishProfile}}
         path: IoTSharp\bin\publish
       env:
         Configuration: ${{ matrix.configuration }}