gh-145866 : Update JIT contributor list (GH-146170)

Doc/whatsnew/3.15.rst

diff --git a/Doc/whatsnew/3.15.rst b/Doc/whatsnew/3.15.rst
index 5689ecb..69283f6 100644
--- a/Doc/whatsnew/3.15.rst
+++ b/Doc/whatsnew/3.15.rst
@@ -1358,7 +1358,7 @@
 reduces the cost of most operations in Python.
 
 (Contributed by Ken Jin, Donghee Na, Zheao Li, Hai Zhu, Savannah Ostrowski,
-Reiden Ong, Noam Cohen, Tomas Roun, PuQing, and Cajetan Rodrigues in :gh:`134584`.)
+Reiden Ong, Noam Cohen, Tomas Roun, PuQing, Cajetan Rodrigues, and Sacul in :gh:`134584`.)
 
 .. rubric:: Better machine code generation