Bump version to v0.20.3 and update changelogs (#12206) (#12260)

GitOrigin-RevId: c58ff7ac1e035ecec3cf5e7bce4ed58ca41b8f94

Author: aleksproger

CHANGELOG.md

@@ -4,6 +4,8 @@ Mapbox welcomes participation and contributions from everyone.
 
 ## main
 
+## 11.20.3 - 14 April, 2026
+
 ## 11.22.0-rc.1 - 08 April, 2026
 
 * Fix old 3D puck model remaining after updating the puck model.
@@ -12,6 +14,8 @@ Mapbox welcomes participation and contributions from everyone.
 
 ## 11.21.0-rc.1 - 23 March, 2026
 
+## 11.20.2 - 25 March, 2026
+
 ## 11.20.1 - 17 March, 2026
 
 ## 11.20.0 - 13 March, 2026