Update NEWS

Author: yutannihilation

NEWS.md

@@ -5,7 +5,7 @@
 * Fixed regression where `draw_key_rect()` stopped using `fill` colours 
   (@mitchelloharawild, #6609).
 * Fixed regression where `scale_{x,y}_*()` threw an error when an expression
-  object is set to `labels` argument (@yutannihilation, #6617).
+  object is set to `labels` argument (@yutannihilation, #6617, #6638).
 
 
 * Allow `stat` in `geom_hline`, `geom_vline`, and `geom_abline`. (@sierrajohnson, #6559)