update news

Author: cpsievert

NEWS.md

@@ -15,6 +15,7 @@
 
 * `subplot()` now bumps annotation `xref`/`yref` anchors correctly (#1181).
 * `subplot()` now accumulates images, repositions paper coordinates, and reanchors axis references (#1332).
+* In some cases, a `ggplotly()` colorbar would cause issues with hover behavior, which is now fixed (#1381).  
 * Recursive attribute validation is now only performed on recursive objects (#1315).
 
 # 4.8.0