chore(dependencies): Updated segment_analytics_plugin_appsflyer dependencies. (#124)

- Updates appsflyer_sdk to 6.15.2.

Co-authored-by: Rishabh Jain <risjain@twilio.com>

Author: Rjaintwilio

packages/plugins/plugin_appsflyer/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
     sdk: flutter
   segment_analytics: ^1.1.1
   json_annotation: ^4.9.0
-  appsflyer_sdk: ^6.15.1
+  appsflyer_sdk: ^6.15.2
 
 dev_dependencies:
   build_runner: ^2.4.7