53843 Fix FlutterError.onError in debug mode (cla: yes, framework)

53848 [flutter_tools] don’t compute hashes of well known artifacts (cla: yes, tool)

53853 [flutter_tools] remove indirection around App.framework production (cla: yes, tool)

53859 [flutter_tools] write SkSL file to local file (cla: yes, tool)

53868 [gen_l10n] Add scriptCode handling (a: internationalization, cla: yes, severe: new feature, team, tool)

53875 Remove network images from cache on any exception during loading (a: images, cla: yes, framework)

53876 Update Windows and Linux plugin templates (cla: yes, tool)

53878 Fix diagnostics crash in profile mode (cla: yes, framework)