docs: add changelog entry for #1359 [ci skip]

Signed-off-by: Yukai Chou <muzimuzhi@gmail.com>

Author: muzimuzhi

doc/generic/pgf/CHANGELOG.md

@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Output bounding box adjustment in pgfsys-dvisvgm.def #1275
 - Fix shadings under LuaMetaTeX
 - Resolve missing `gnuplot` plots in manual #1238
+- Treat varargs for `min` and `max` in `luamath` pgf-tikz/pgfplots#492 #1359
 
 ### Changed