Bump babel-loader from 8.1.0 to 8.2.1 (#15167)

Bumps [babel-loader](https://github.com/babel/babel-loader) from 8.1.0 to 8.2.1.
- [Release notes](https://github.com/babel/babel-loader/releases)
- [Changelog](https://github.com/babel/babel-loader/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel-loader/compare/v8.1.0...v8.2.1

)

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