Try fix EventRoute weak memory leak

Fixes https://github.com/dotnet/runtime/issues/104807

Reference #6700

Author: lindexi

src/Microsoft.DotNet.Wpf/src/PresentationCore/System/Windows/EventRoute.cs

@@ -200,9 +200,11 @@ private void InvokeHandlersImpl(object source, RoutedEventArgs args, bool reRais
                             TraceEventType.Stop,
                             TraceRoutedEvent.InvokeHandlers,
                             _traceArguments);
-                    }
-
 
+                        _traceArguments[0] = null;
+                        _traceArguments[1] = null;
+                        _traceArguments[2] = null;
+                    }
                 }
             }
             else
@@ -273,6 +275,10 @@ private void InvokeHandlersImpl(object source, RoutedEventArgs args, bool reRais
                                 TraceEventType.Stop,
                                 TraceRoutedEvent.InvokeHandlers,
                                 _traceArguments);
+
+                            _traceArguments[0] = null;
+                            _traceArguments[1] = null;
+                            _traceArguments[2] = null;
                         }
 
                     }