build(deps-dev): bump webpack-dev-server from 3.11.3 to 5.1.0 in /web

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.11.3 to 5.1.0.
- [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@v3.11.3...v5.1.0)

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

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

web/package.json

@@ -157,7 +157,7 @@
     "url-loader": "^4.1.0",
     "webpack": "^4.47.0",
     "webpack-cli": "^3.3.12",
-    "webpack-dev-server": "^3.11.0",
+    "webpack-dev-server": "^5.1.0",
     "webpack-merge": "^5.8.0"
   },
   "resolutions": {