4357 [shared_preferences] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: shared_preferences, platform-ios)

4359 [url_launcher] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: url_launcher, platform-ios)

4360 [video_player] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: video_player, platform-ios)

4361 [webview_flutter] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: webview_flutter, platform-ios)

4362 [camera] Remove iOS 9 availability check around ultra high capture sessions (cla: yes, waiting for tree to go green, p: camera, platform-ios)