Bump minimume Dart to `162.2485`. (#377)
Bump minimume Dart to `162.2485`. (#377)

Ensures that we have a Dart plugin where `pub` works as expected.

See: https://github.com/flutter/flutter-intellij/issues/271
flutter/flutter-intellij,flutter/flutter-intellij,flutter/flutter-intellij,flutter/flutter-intellij,flutter/flutter-intellij