[3.13] GH-105879: Note exec/eval keyword change in What's New (GH-121831) (#121852)

GH-105879: Note exec/eval keyword change in What's New (GH-121831)
(cherry picked from commit d7a099d)

Co-authored-by: Alyssa Coghlan <[email protected]>
Co-authored-by: Łukasz Langa <[email protected]>

Author: 3 people

Doc/whatsnew/3.13.rst

@@ -422,6 +422,10 @@ free-threaded build.
 Other Language Changes
 ======================
 
+* The :func:`exec` and :func:`eval` built-ins now accept their ``globals``
+  and ``locals`` namespace arguments as keywords.
+  (Contibuted by Raphael Gaschignard in :gh:`105879`)
+
 * Allow the *count* argument of :meth:`str.replace` to be a keyword.
   (Contributed by Hugo van Kemenade in :gh:`106487`.)