Clean up ScrollbarPainter by @Piinks in https://github.com/flutter/flutter/pull/107179

Remove outdated ignores by @goderbauer in https://github.com/flutter/flutter/pull/108924

Add more logs to diagnose Gold flake by @Piinks in https://github.com/flutter/flutter/pull/108930

Update Text field counter error style to material 3 by @hangyujin in https://github.com/flutter/flutter/pull/108704

Fix an issue that semantics on TextField is not updated when changing obscureText by @hangyujin in https://github.com/flutter/flutter/pull/108545

Don’t redefine SkSL builtin function ‘saturate’ by @zanderso in https://github.com/flutter/flutter/pull/108946