Bump webpack-dev-server from 3.1.3 to 3.1.11

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.1.3 to 3.1.11.
- [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@v3.1.3...v3.1.11)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -100,7 +100,7 @@
     "uuid": "3.2.1",
     "webpack": "4.6.0",
     "webpack-cli": "2.0.15",
-    "webpack-dev-server": "3.1.3"
+    "webpack-dev-server": "3.1.11"
   },
   "dependencies": {
     "bootstrap": "4.0.0",