Bump loader-utils, babel-loader and webpack

Removes [loader-utils](https://github.com/webpack/loader-utils). It's no longer used after updating ancestor dependencies [loader-utils](https://github.com/webpack/loader-utils), [babel-loader](https://github.com/babel/babel-loader) and [webpack](https://github.com/webpack/webpack). These dependencies need to be updated together.


Removes `loader-utils`

Updates `babel-loader` from 6.3.2 to 9.1.0
- [Release notes](https://github.com/babel/babel-loader/releases)
- [Changelog](https://github.com/babel/babel-loader/blob/main/CHANGELOG.md)
- [Commits](babel/babel-loader@v6.3.2...v9.1.0)

Updates `webpack` from 2.2.1 to 5.74.0
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v2.2.1...v5.74.0)

---
updated-dependencies:
- dependency-name: loader-utils
  dependency-type: indirect
- dependency-name: babel-loader
  dependency-type: direct:development
- dependency-name: webpack
  dependency-type: direct:development
...

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Author: dependabot[bot]