Roll Flutter Engine from 1dfcb6967dd1 to a5173fe3a912 (1 revision) (#141063)

https://github.com/flutter/engine/compare/1dfcb6967dd1...a5173fe3a912

2024-01-06 skia-flutter-autoroll@skia.org Roll Skia from a6e0b4c6a916 to 388ef1be2bb8 (1 revision) (flutter/engine#49580)

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 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

bin/internal/engine.version

-1dfcb6967dd1525b4679d5f5560b3f50b5ddd825
+a5173fe3a91264caa29a9c9edcaf7d61279e790d