Bump webpack-dev-server from 3.11.2 to 4.1.0 (#3497)
Bump webpack-dev-server from 3.11.2 to 4.1.0 (#3497)

* Bump webpack-dev-server from 3.11.2 to 4.1.0

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.11.2 to 4.1.0.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-dev-server/compare/v3.11.2...v4.1.0)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

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