Bump babel-loader from 7.1.5 to 8.0.4 in /apps/accessibility

Bumps [babel-loader](https://github.com/babel/babel-loader) from 7.1.5 to 8.0.4.
- [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/v7.1.5...v8.0.4

)

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