chore: bump version of VSIX to v3.3

extension/visual studio/WpfCoreApp/MainWindow.xaml.cs

@@ -0,0 +1,10 @@
+namespace $safeprojectname$
+{
+    public partial class MainWindow
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}