2485 Fix ci error: deprecated api (cla: yes)

2487 [video_player] Add caption to VideoPlayerValue to get the current closed caption (cla: yes, waiting for test harness)

2488 [google_maps_flutter] supports v2 android embedding. (cla: yes)

2490 [url_launcher_web] Added support for mailto in url_launcher_web plugin (cla: yes)

2492 Configure Cirrus Branch Guard (cla: yes)

2496 Revert “Configure Cirrus Branch Guard” (cla: yes)

2497 [google_maps_flutter] Fixes toggling traffic layer not working on Android (cla: yes, in review)

2500 [webview_flutter] Fix iOS WebView not opening href with target=”_blank” (cla: yes)