2603 [package_info] Upgrade to 1.12 Flutter and cleanup. (cla: yes)

2604 [package_info, sensors] Announce API stability and compatibility with 1.0.0 (cla: yes)

2605 [quick_actions] Upgrade to 1.12 Flutter and cleanup. (cla: yes)

2607 [google_maps_flutter] Take snapshot of map (cla: yes, submit queue)

2611 [google_sign_in] update to androidx (cla: yes)

2613 [connectivity, battery, android_alarm_manager] v2 support (cla: yes)

2619 [google_map_flutter] fix google map version in pubspec. (cla: yes)

2621 [image_picker] Image picker select preferred camera device (rear, front) (cla: yes)