Bumps [superstruct](https://github.com/ianstormtaylor/superstruct) from 0.7.0 to 0.8.3. - [Release notes](https://github.com/ianstormtaylor/superstruct/releases) - [Changelog](https://github.com/ianstormtaylor/superstruct/blob/master/Changelog.md) - [Commits](https://github.com/ianstormtaylor/superstruct/compare/v0.7.0...v0.8.3) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>