[skip ci] Update changelogs for v0.19.0-beta.1 release

GitOrigin-RevId: 43a3dc2af29d49f299de1482af3a3fc6171e24eb

Author: Kylmakalle

CHANGELOG.md

@@ -4,6 +4,8 @@ Mapbox welcomes participation and contributions from everyone.
 
 ## main
 
+## 11.19.0-beta.1 - 28 January, 2026
+
 ### Features ✨ and improvements 🏁
 * Introduce experimental `queryRenderedRasterValues` API for querying the rendered raster array value at a point on the map.
 ## 11.18.0 - 15 January, 2026