Bump webpack-dev-server from 3.11.3 to 5.2.2

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.11.3 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@v3.11.3...v5.2.2)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-version: 5.2.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -68,7 +68,7 @@
     "style-loader": "~2",
     "webpack": "~4",
     "webpack-cli": "~4",
-    "webpack-dev-server": "~3",
+    "webpack-dev-server": "~5",
     "worker-loader": "^3.0.8"
   },
   "dependencies": {