Bump webpack-dev-server from 3.11.2 to 4.0.0

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.11.2 to 4.0.0.
- [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...v4.0.0)

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

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

package.json

@@ -53,7 +53,7 @@
     "typescript": "^4.3.5",
     "webpack": "^5.51.1",
     "webpack-cli": "^4.8.0",
-    "webpack-dev-server": "^3.11.2",
+    "webpack-dev-server": "^4.0.0",
     "webpack-merge": "^5.8.0",
     "workbox-webpack-plugin": "^6.2.4",
     "worker-plugin": "^5.0.1"