* Revert "Revert "fix --force-upgrade script; upgrade to the latest package versions (#12700)" (#12729)"
This reverts commit 7f0d4f4caa.
* keep linter pinned at 0.1.35
microbenchmarks
To run these benchmarks on a device, first run `flutter logs' in one window to see the device logs, then, in a different window, run any of these:
flutter run --release lib/gestures/velocity_tracker_data.dart
flutter run --release lib/stocks/animation_bench.dart
flutter run --release lib/stocks/build_bench.dart
flutter run --release lib/stocks/layout_bench.dart
The results should be in the device logs.