Bump webpack-dev-middleware from 6.1.1 to 6.1.2 (#278)

Bumps [webpack-dev-middleware](https://github.com/webpack/webpack-dev-middleware) from 6.1.1 to 6.1.2.
- [Release notes](https://github.com/webpack/webpack-dev-middleware/releases)
- [Changelog](https://github.com/webpack/webpack-dev-middleware/blob/v6.1.2/CHANGELOG.md)
- [Commits](webpack/webpack-dev-middleware@v6.1.1...v6.1.2)

---
updated-dependencies:
- dependency-name: webpack-dev-middleware
  dependency-type: indirect
...

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