Roll Flutter Engine from 31d5662dcb53 to b63eee2e31cc (1 revision) (#133692)

https://github.com/flutter/engine/compare/31d5662dcb53...b63eee2e31cc

2023-08-30 jason-simmons@users.noreply.github.com [Impeller] Reorganize the glyph atlas to improve efficiency when looking up runs of glyphs in the same font (flutter/engine#45191)

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 aaclarke@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

-31d5662dcb530e00f27b00fc605c2ca2f8f72b1c
+b63eee2e31cc3739bf89d193fde6fa6f66fba04a