22656 Create FlutterFrameBufferProvider class (affects: desktop, cla: yes, needs tests, platform-macos, waiting for tree to go green)

22657 [embedder][glfw] Add support for locales to glfw shell (cla: yes)

22658 Fix race condition in key event handling on Android (cla: yes, platform-android)

22659 Roll Skia from 0006ad01ce55 to 0dd83e165ae9 (21 revisions) (cla: yes, waiting for tree to go green)

22660 Roll Dart SDK from d189db64441c to 2ff016f0416d (1 revision) (cla: yes, waiting for tree to go green)