[Input] [MacOS] fix timestamp overflow on objC side

native/Avalonia.Native/src/OSX/AvnView.mm

@@ -275,7 +275,7 @@
         delta.Y = [event deltaY];
     }
 
-    uint32 timestamp = static_cast<uint32>([event timestamp] * 1000);
+    uint64 timestamp = static_cast<uint64>([event timestamp] * 1000);
     auto modifiers = [self getModifiers:[event modifierFlags]];
 
     if(type != Move ||

native/Avalonia.Native/src/OSX/AvnWindow.mm

@@ -460,7 +460,7 @@
                     auto point = [self translateLocalPoint:avnPoint];
                     AvnVector delta = { 0, 0 };
 
-                    _parent->BaseEvents->RawMouseEvent(NonClientLeftButtonDown, static_cast<uint32>([event timestamp] * 1000), AvnInputModifiersNone, point, delta);
+                    _parent->BaseEvents->RawMouseEvent(NonClientLeftButtonDown, static_cast<uint64>([event timestamp] * 1000), AvnInputModifiersNone, point, delta);
                 }
                 
                 if(!_isTransitioningToFullScreen)