Roll Flutter Engine from 55eefd5bd255 to b2167a93c1a0 (2 revisions) (#142252)

https://github.com/flutter/engine/compare/55eefd5bd255...b2167a93c1a0

2024-01-25 jonahwilliams@google.com [Impeller] write vertices geometry data to host buffer. (flutter/engine#49741)
2024-01-25 jonahwilliams@google.com Revert "[Impeller] round up subpass coverage when it is close to (and smaller) than root pass size." (flutter/engine#50041)

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 jacksongardner@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

bin/internal/engine.version

-55eefd5bd255cfac769509a7b16601faa5e3d546
+b2167a93c1a0470f5d45553fc332e2914d03b29f