4015 Enable linting of macOS podspecs (cla: yes, p: path_provider, p: url_launcher, p: package_info, p: shared_preferences, p: connectivity, platform-macos)

4017 Support Hybrid Composition on Android (cla: yes, waiting for tree to go green, p: google_maps_flutter)

4018 [flutter_plugin_tools] Remove global state from tests (cla: yes)

4019 [image_picker] Fix rotation when camera is a source (cla: yes, p: image_picker, platform-ios)

4020 [in_app_purchase] Added userIds to google play purchase (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-android)