29ed214e7f
Adds a kotlin linting step to the linux analyze check, using a version of [ktlint](https://github.com/pinterest/ktlint) hosted on [CIPD](https://chrome-infra-packages.appspot.com/p/flutter/ktlint/linux-amd64/+/version_1_1_1). Configured to disallow trailing commas, because of (and now acting as a test for) https://github.com/flutter/flutter/pull/145718. Because of this configuration the PR also removes some trailing commas in some kotlin files. Also checks in a baseline file.