3978 [google_maps_flutter] Add iOS unit and UI tests (cla: yes, waiting for tree to go green, p: google_maps_flutter, platform-ios)

3979 [video_player] Add URL for exoplayer to maven for all dependents (cla: yes, p: camera, p: video_player, platform-android)

3980 Remove exoplayer workaround from everything but video_player (cla: yes, p: camera, p: image_picker, platform-android)

3981 Allow reverts when checking versions (cla: yes)

3982 [script/tool] speed up the pub get portion of the analyze command (cla: yes, waiting for tree to go green)

3983 Enable pubspec dependency sorting lint (cla: yes, waiting for tree to go green, p: path_provider, p: espresso, platform-windows, platform-macos, platform-linux)