Update copyright line with correct year and actual author. The author information was copy-pasted from the git log output.

Author: rwgk

include/pybind11/typing.h

@@ -2,7 +2,7 @@
     pybind11/typing.h: Convenience wrapper classes for basic Python types
     with more explicit annotations.
 
-    Copyright (c) 2016 Wenzel Jakob <[email protected]>
+    Copyright (c) 2023 Dustin Spicuzza <[email protected]>
 
     All rights reserved. Use of this source code is governed by a
     BSD-style license that can be found in the LICENSE file.