C#: Add another test for MissingAccessControl.ql

csharp/ql/test/query-tests/Security Features/CWE-285/MissingAccessControl/MVCTests/ProfileController.cs

@@ -41,6 +41,14 @@ public class ProfileController : Controller
         doThings();
         return View();
     }
+
+    // GOOD: The Authorize attribute is used.
+    [Authorize("foo")]
+    public ActionResult Delete5(int id)
+    {
+        doThings();
+        return View();
+    }
 }
 
 [Authorize]