[MAPSSDK-851] Add Animation support to Marker on Android and iOS (#7661)

This PR adds pre-defined animations to Markers for both iOS and Android,
enabling developers to easily animate markers when they appear (marker
is added to the map) or disappear (removed from map). There are three
pre-defined animations, which can be combined

GitOrigin-RevId: 37a14f5b0ffa8c7adc9d2b0421b0114507a5f17b

Author: pjleonard37

CHANGELOG.md

@@ -6,6 +6,9 @@ Mapbox welcomes participation and contributions from everyone.
 
 # main
 
+## Features ✨ and improvements 🏁
+* [compose] Add declarative animation API to experimental `Marker` composable with two animation triggers: `appearAnimation` and `disappearAnimation`. Each trigger accepts a list of `MarkerAnimationEffect` including `wiggle` (pendulum rotation), `scale`, `fadeIn`, and `fadeOut`. Effects can be customized with parameters (e.g., `scale(from = 0.5f, to = 1.5f)`, `fade(from = 0.5f, to = 1.0f)`) and combined for rich animations. See `MarkersActivity` example for usage.
+
 # 11.19.0-rc.1 February 12, 2026
 
 ## Features ✨ and improvements 🏁