chore(deps-dev): Bump @babel/preset-env from 7.4.2 to 7.4.3 (#1020)

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.4.2 to 7.4.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.4.2...v7.4.3)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot[bot]