Roll Packages from 2a0f254 to c9c0004 (6 revisions) (#154411)

flutter/packages@2a0f254...c9c0004

2024-08-30 10687576+bparrishMines@users.noreply.github.com [pigeon] Kotlin implementation for ProxyApis  (flutter/packages#6371)
2024-08-29 louisehsu@google.com [in_app_purchase_storekit] Add storekit 2 support for canMakePayments and products (flutter/packages#7473)
2024-08-29 mhvdijk@gmail.com [flutter_adaptive_scaffold] Add correct material spacing and panes (flutter/packages#7428)
2024-08-29 34871572+gmackall@users.noreply.github.com [many] Upgrade example apps to AGP 8.5.2 (if they were below 8.1.0) (flutter/packages#7521)
2024-08-29 tarrinneal@gmail.com [pigeon] allow gen of unused classes (flutter/packages#7529)
2024-08-29 magder@google.com Increase deprecation check minimum to iOS 14 and macOS 13 (flutter/packages#7431)

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

@@ -1 +1 @@
-2a0f25419c5295166d26a89321c405bc153a7e93
+c9c000430163731608b5b1a17204fcb5711977ba