[skip ci] Update changelogs for v0.16.0-rc.1 release

GitOrigin-RevId: cca6af96c4cb4d58853aaf5414c8df6420de41c1

Author: temap

CHANGELOG.md

@@ -4,6 +4,8 @@ Mapbox welcomes participation and contributions from everyone.
 
 ## main
 
+## 11.16.0-rc.1 - 07 October, 2025
+
 ## 11.16.0-beta.1 - 23 September, 2025
 
 ### Features ✨ and improvements 🏁