Bump webpack from 5.75.0 to 5.76.0 in /gui/admin-gui

Bumps [webpack](https://github.com/webpack/webpack) from 5.75.0 to 5.76.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.75.0...v5.76.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:development
...

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

gui/admin-gui/package.json

@@ -38,7 +38,7 @@
     "sparklines": "^1.3.0",
     "style-loader": "^3.3.1",
     "tempusdominus-bootstrap-4": "^5.39.2",
-    "webpack": "^5.75.0",
+    "webpack": "^5.76.0",
     "webpack-cli": "^5.0.0",
     "webpack-merge": "^5.8.0"
   }