Version bump

Author: stuartmorgan-g

packages/google_maps_flutter/google_maps_flutter_ios/CHANGELOG.md

@@ -1,5 +1,7 @@
-## NEXT
+## 2.15.6
 
+* Fixes potential flickers of default property values when adding objects to
+  the map.
 * Updates minimum supported SDK version to Flutter 3.29/Dart 3.7.
 
 ## 2.15.5

packages/google_maps_flutter/google_maps_flutter_ios/pubspec.yaml

@@ -2,7 +2,7 @@ name: google_maps_flutter_ios
 description: iOS implementation of the google_maps_flutter plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter_ios
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.15.5
+version: 2.15.6
 
 environment:
   sdk: ^3.7.0