Bump @babel/core from 7.4.4 to 7.4.5

Bumps [@babel/core](https://github.com/babel/babel) from 7.4.4 to 7.4.5.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.4.4...v7.4.5)