Bumps [cross-env](https://github.com/kentcdodds/cross-env) from 6.0.3 to 7.0.3. - [Release notes](https://github.com/kentcdodds/cross-env/releases) - [Changelog](https://github.com/kentcdodds/cross-env/blob/master/CHANGELOG.md) - [Commits](https://github.com/kentcdodds/cross-env/compare/v6.0.3...v7.0.3) Signed-off-by: dependabot[bot] <support@github.com>