Roll Flutter Engine from 67e8b825cc91 to aa98a9d2e86f (4 revisions) (#133220)

https://github.com/flutter/engine/compare/67e8b825cc91...aa98a9d2e86f

2023-08-24 dnfield@google.com [Impeller] Fix stencil buffer format selection on Vulkan backend, add support for D24UnormS8Uint (flutter/engine#45025)
2023-08-24 jason-simmons@users.noreply.github.com Fix a clang-tidy error seen in the latest toolchain roll (flutter/engine#45039)
2023-08-23 skia-flutter-autoroll@skia.org Roll Skia from a631fefdba37 to 9d4db3443527 (1 revision) (flutter/engine#45031)
2023-08-23 zanderso@users.noreply.github.com Roll clang with fix for ABI change (flutter/engine#44711)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jimgraham@google.com,rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

bin/internal/engine.version

-67e8b825cc91525debc3d70c07229834b1d64a4f
+aa98a9d2e86fa3684bac5dd5e8b7b882fea322ae