Roll Packages from 25abb5d1e0de to 5b48c446976f (4 revisions) (#142616)

https://github.com/flutter/packages/compare/25abb5d1e0de...5b48c446976f

2024-01-30 ian@hixie.ch [rfw] Enable subscribing to the root of a DynamicContent (flutter/packages#5848)
2024-01-30 10687576+bparrishMines@users.noreply.github.com [pigeon] Adds ProxyApi to AST generation (flutter/packages#5861)
2024-01-30 stuartmorgan@google.com [tool] Exempt federated impl examples from CHANGELOG (flutter/packages#6018)
2024-01-30 engine-flutter-autoroll@skia.org Manual roll Flutter from 2f6fdf26 to ace91811 (57 revisions) (flutter/packages#6013)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages-flutter-autoroll
Please CC flutter-ecosystem@google.com,rmistry@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/flutter_packages.version

-25abb5d1e0de3352299a070d71ab2428fcae988a
+5b48c446976fd5f61316d58ab3fcc9888423c2e6