Bumps [gulp](https://github.com/gulpjs/gulp) from 4.0.1 to 4.0.2.
- [Release notes](https://github.com/gulpjs/gulp/releases)
- [Changelog](https://github.com/gulpjs/gulp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gulpjs/gulp/compare/v4.0.1...v4.0.2)
Signed-off-by: dependabot[bot] <support@dependabot.com>