Bump webpack-dev-server from 4.13.3 to 4.15.0

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.13.3 to 4.15.0.
- [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@v4.13.3...v4.15.0)

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

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

package.json

@@ -17,7 +17,7 @@
     "ts-node": "^10.9.1",
     "webpack": "^5.82.0",
     "webpack-cli": "^5.0.2",
-    "webpack-dev-server": "^4.13.3",
+    "webpack-dev-server": "^4.15.0",
     "webpack-merge": "^5.8.0"
   },
   "scripts": {