Bump webpack-dev-server from 3.11.0 to 3.11.2 (#3650)

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.11.0 to 3.11.2.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/v3.11.2/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-dev-server/compare/v3.11.0...v3.11.2)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -383,7 +383,7 @@
     "url-loader": "^4.1.1",
     "webpack": "^4.46.0",
     "webpack-cli": "^3.3.12",
-    "webpack-dev-server": "^3.11.0",
+    "webpack-dev-server": "^3.11.2",
     "webpack-node-externals": "^1.7.2",
     "what-input": "^5.2.10",
     "xterm": "^4.12.0",