Bump webpack-dev-server from 4.7.3 to 4.7.4 in /samples/browser/web

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.7.3 to 4.7.4.
- [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@v4.7.3...v4.7.4)

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

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

Author: dependabot[bot]

samples/browser/web/package-lock.json

@@ -14,6 +14,6 @@
   "devDependencies": {
     "webpack": "^5.68.0",
     "webpack-cli": "^4.9.2",
-    "webpack-dev-server": "^4.7.3"
+    "webpack-dev-server": "^4.7.4"
   }
 }