Bump webpack in /graylog2-web-interface/packages/graylog-web-plugin

Bumps [webpack](https://github.com/webpack/webpack) from 5.103.0 to 5.104.1.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Changelog](https://github.com/webpack/webpack/blob/main/CHANGELOG.md)
- [Commits](webpack/webpack@v5.103.0...v5.104.1)

---
updated-dependencies:
- dependency-name: webpack
  dependency-version: 5.104.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

graylog2-web-interface/packages/graylog-web-plugin/package.json

@@ -52,7 +52,7 @@
     "styled-components": "6.1.1",
     "typescript": "5.9.3",
     "use-query-params": "^2.2.0",
-    "webpack": "5.103.0",
+    "webpack": "5.104.1",
     "webpack-cli": "6.0.1",
     "webpack-merge": "^6.0.1"
   }