Merge pull request prometheus#4183 from prometheus/dependabot/npm_and_yarn/ui/react-app/webpack-cli-6.0.1

Bump webpack-cli from 5.1.4 to 6.0.1 in /ui/react-app

Author: SuperQ

ui/react-app/package-lock.json

@@ -44,7 +44,7 @@
     "typescript": "^5.7.2",
     "webpack": "^5.95.0",
     "webpack-bundle-analyzer": "^4.10.2",
-    "webpack-cli": "^5.1.4",
+    "webpack-cli": "^6.0.1",
     "webpack-dev-server": "^5.2.0",
     "webpack-merge": "^6.0.1"
   }