25843 [flutter_releases] Flutter Stable 2.0.6 Engine Cherrypicks (platform-ios, platform-android, cla: yes, platform-web, platform-macos, platform-linux, platform-windows, platform-fuchsia, embedder)

25879 Windows: UWP ViewController accepts a CoreApplicationView and exposes to plugins (cla: yes, platform-windows)

25882 [Win32] Don’t redispatch ShiftRight keydown event (affects: text input, cla: yes, platform-windows)

25883 Update key mapping to the latest logical key values (affects: text input, cla: yes, platform-web, platform-macos, platform-linux, platform-windows, embedder)

26026 Return a maximum nanoseconds value in FlutterDesktopEngineProcessMessages (cla: yes, waiting for tree to go green, platform-windows)