build(deps-dev): update react requirement to ~16.4.1 (#1019)
build(deps-dev): update react requirement to ~16.4.1 (#1019)

Updates the requirements on [react](https://github.com/facebook/react) to permit the latest version.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.4.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
stryker-mutator/stryker,stryker-mutator/stryker,stryker-mutator/stryker