4366 [webview_flutter] Migrate main package to fully federated architecture. (cla: yes, waiting for tree to go green, p: webview_flutter, platform-ios, platform-android)

4367 Require authors file (cla: yes, p: camera, p: in_app_purchase, p: quick_actions, platform-ios, platform-android, platform-web)

4370 [in_app_purchase] Ensure the introductoryPriceMicros field is transported as a String. (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-android)

4373 [flutter_plugin_tools] Check licenses in Kotlin (cla: yes, p: shared_preferences, platform-android)

4377 [webview_flutter_android] Load example App’s navigation controls immediately. (cla: yes, waiting for tree to go green, p: webview_flutter, platform-android)