Bump babel-loader from 8.0.5 to 8.0.6

Bumps [babel-loader](https://github.com/babel/babel-loader) from 8.0.5 to 8.0.6.
- [Release notes](https://github.com/babel/babel-loader/releases)
- [Changelog](https://github.com/babel/babel-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel-loader/compare/v8.0.5...v8.0.6

)

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