build(deps): bump webpack-dev-server and @nrwl/webpack

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) to 5.2.2 and updates ancestor dependency [@nrwl/webpack](https://github.com/nrwl/nx/tree/HEAD/packages-legacy/webpack). These dependencies need to be updated together.


Updates `webpack-dev-server` from 4.15.2 to 5.2.2
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v4.15.2...v5.2.2)

Updates `@nrwl/webpack` from 19.0.1 to 19.8.4
- [Release notes](https://github.com/nrwl/nx/releases)
- [Commits](https://github.com/nrwl/nx/commits/19.8.4/packages-legacy/webpack)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-version: 5.2.2
  dependency-type: indirect
- dependency-name: "@nrwl/webpack"
  dependency-version: 19.8.4
  dependency-type: direct:development
...

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Author: dependabot[bot]