[all] update changelog for 0.12.4 release

GitOrigin-RevId: 8f7bb684bbec6ce200a56afc5d283e257644177c

Author: tobrun

CHANGELOG.md

@@ -4,6 +4,8 @@ Mapbox welcomes participation and contributions from everyone.
 
 ## main
 
+## 11.12.4 - 12 June, 2025
+
 ## 11.12.3 - 05 June, 2025
 
 ## 11.12.2 - 22 May, 2025