update version

Author: Chris Yang

packages/google_maps_flutter/google_maps_flutter/CHANGELOG.md

@@ -1,7 +1,8 @@
-## NEXT
+## 2.1.6
 
 * Fixes iOS native unit tests on M1 devices.
 * Minor fixes for new analysis options.
+* Objective-C code cleanup.
 
 ## 2.1.5
 

packages/google_maps_flutter/google_maps_flutter/pubspec.yaml

@@ -2,7 +2,7 @@ name: google_maps_flutter
 description: A Flutter plugin for integrating Google Maps in iOS and Android applications.
 repository: https://github.com/flutter/plugins/tree/main/packages/google_maps_flutter/google_maps_flutter
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.1.5
+version: 2.1.6
 
 environment:
   sdk: ">=2.14.0 <3.0.0"