Makes the android_semantics_testing test not fail for newer versions of Talkback.

Also, since the test now depends on pub_semver, upgraded the pubspec files.

The only substantive changes in the PR are in dev/integration_tests/android_semantics_testing/test_driver/main_test.dart

* 921872d97 Roll Skia from 762a01fd999e to 721388ecdbbe (4 revisions) (flutter/engine#29390)

* 5a6fa26e1 Make an interface for FlBinaryMessenger

* 3510312c6 Make an interface for FlPluginRegistrar

* a99f373c6 Make an interface for FlTextureRegistrar

* ed44967b8 Fix widget reference handling

* 98333c8bd Move mock objects into separate modules

* 71c8a9cd2 Can't test FlView on a server - no display

* 367e37165 Update licenses

* eb7401c7f Roll Skia from 721388ecdbbe to b5450fb9015b (2 revisions) (flutter/engine#29392)

* 111b80ef6 Inform the Dart VM when snapshots are safe to use with madvise(DONTNEED). (flutter/engine#29320)

* 684323cd3 [fuchsia] Remove unused sdk_ext.gni. (flutter/engine#29393)

* 3a0a63c2d Roll Skia from b5450fb9015b to 9fc189f1cbdf (2 revisions) (flutter/engine#29394)

InputDecorator floating label origin no longer depends on ThemeData.fixTextFieldOutlineLabel (#92698)

[flutter_tools] [iOS] Change UIViewControllerBasedStatusBarAppearance to true to fix rotation status bar disappear in portrait (#92647)

* lift git-rev-parse in conductor start
* remove localFlutterRoot from globals.dart
* make localFlutterRoot getter private
* fix analysis

* Add support for running tests through debug-adapter

* Improve comments about stdout + remove pedantic