Roll Flutter Engine from d665bf82dc32 to 21629ece8b72 (4 revisions) (flutter#152344)

flutter/engine@d665bf8...21629ec

2024-07-25 49699333+dependabot[bot]@users.noreply.github.com Bump github/codeql-action from 3.25.12 to 3.25.13 (flutter/engine#54039)
2024-07-25 58529443+srujzs@users.noreply.github.com Initial pass to cleanup dom.dart to use newer JS interop styles (flutter/engine#54093)
2024-07-25 zanderso@users.noreply.github.com Roll buildroot to e92499322525306bd637eb79d1e6dd507d5f3062 (flutter/engine#54113)
2024-07-25 jonahwilliams@google.com [iOS] enable FlutterMetalLayer. (flutter/engine#54121)

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 jonahwilliams@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://issues.skia.org/issues/new?component=1389291&template=1850622

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

Author: engine-flutter-autoroll

bin/internal/engine.version

@@ -1 +1 @@
-d665bf82dc32bae5e12b0ca99f261129f0905543
+21629ece8b721a6e7fa615151d193b7326c1f539