4330 [video_player] add support for content-uri based videos (cla: yes, p: video_player, platform-web)

4344 [video_player] Fix a disposed VideoPlayerController throwing an exception when being replaced in the VideoPlayer (cla: yes, p: video_player)

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

4406 Fix order-dependant platform interface tests (cla: yes, waiting for tree to go green, p: file_selector, p: google_maps_flutter, p: google_sign_in, p: url_launcher, p: video_player, p: quick_actions)

4419 Fix Java version (cla: yes, waiting for tree to go green, p: video_player, p: connectivity, platform-android)