Bump webpack-dev-server from 3.2.1 to 3.11.0

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.2.1 to 3.11.0.
- [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@v3.2.1...v3.11.0)

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

Author: dependabot-preview[bot]

package.json

@@ -71,7 +71,7 @@
     "style-loader": "1.2.1",
     "webpack": "4.29.6",
     "webpack-cli": "3.3.0",
-    "webpack-dev-server": "3.2.1",
+    "webpack-dev-server": "3.11.0",
     "webpack-merge": "4.2.1"
   }
 }