https://github.com/flutter/engine/pull/43974 added a license file to the Dart SDK's ZIP archive. As a result, extracting the Dart SDK now needs to overwrite the cache's `LICENSE.dart_sdk_archive.md` file.

This is a short-term solution that will be cherry-picked for the next [3.14 beta release](https://github.com/flutter/flutter/issues/132267). Addresses https://github.com/flutter/flutter/issues/132592.

The long-term solution is tracked by https://github.com/flutter/flutter/issues/132702