Update copyright year in README (pythonGH-100863)

(cherry picked from commit e47b139)

Co-authored-by: Ned Deily <[email protected]>
Co-authored-by: HARSHA VARDHAN <[email protected]>

Author: 2 people

README.rst

@@ -245,7 +245,7 @@ Copyright and License Information
 ---------------------------------
 
 
-Copyright © 2001-2022 Python Software Foundation.  All rights reserved.
+Copyright © 2001-2023 Python Software Foundation.  All rights reserved.
 
 Copyright © 2000 BeOpen.com.  All rights reserved.