Fix incorrect pull GitHub link in What's New (pythonGH-120045)

(cherry picked from commit 5f03f09)

Co-authored-by: Trey Hunner <[email protected]>
Co-authored-by: Hugo van Kemenade <[email protected]>

Author: 2 people

Doc/whatsnew/3.13.rst

@@ -994,7 +994,7 @@ random
 ------
 
 * Add a :ref:`command-line interface <random-cli>`.
-  (Contributed by Hugo van Kemenade in :gh:`54321`.)
+  (Contributed by Hugo van Kemenade in :gh:`118131`.)
 
 re
 --