https://github.com/flutter/packages/compare/83959fb7de37...d449a17f8706

2023-05-22 stuartmorgan@google.com [various] Remove unnecessary null checks (flutter/packages#4060)
2023-05-22 stuartmorgan@google.com [ci] Add a legacy Android build-all test (flutter/packages#4005)
2023-05-22 engine-flutter-autoroll@skia.org Roll Flutter from ab573048 to 34371894 (5 revisions) (flutter/packages#4062)
2023-05-22 tobias@leafnode.se [go_router] Nested stateful navigation with ShellRoute (flutter/packages#2650)
2023-05-22 tobias@leafnode.se [go_router] Nested stateful navigation with ShellRoute (flutter/packages#2650)
2023-05-22 tobias@leafnode.se [go_router] Nested stateful navigation with ShellRoute (flutter/packages#2650)

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://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