Bumps [through2](https://github.com/rvagg/through2) from 3.0.1 to 4.0.1.
- [Release notes](https://github.com/rvagg/through2/releases)
- [Commits](https://github.com/rvagg/through2/compare/v3.0.1...v4.0.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>