Roll Packages from c9933fc09a0b to 2102327ab9f2 (3 revisions) (#138895)

https://github.com/flutter/packages/compare/c9933fc09a0b...2102327ab9f2

2023-11-22 mikemcguiness@protonmail.com [cross_file] adopt code excerpts in README (flutter/packages#5347)
2023-11-21 engine-flutter-autoroll@skia.org Manual roll Flutter from 9c9e0617 to ab721f93 (16 revisions) (flutter/packages#5461)
2023-11-21 kevmoo@users.noreply.github.com [url_launcher_web] migrate to pkg:web (flutter/packages#5451)

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

-c9933fc09a0bb3790def393105f984ad24a2029a
+2102327ab9f2e99b9349e364dbf66a4dc1bea2c5