chore(frontend/deps-dev): bump eslint-config-next

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 15.5.2 to 15.5.6.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v15.5.6/packages/eslint-config-next)

---
updated-dependencies:
- dependency-name: eslint-config-next
  dependency-version: 15.5.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

autogpt_platform/frontend/package.json

@@ -137,7 +137,7 @@
     "concurrently": "9.2.1",
     "cross-env": "7.0.3",
     "eslint": "8.57.1",
-    "eslint-config-next": "15.5.2",
+    "eslint-config-next": "15.5.6",
     "eslint-plugin-storybook": "9.1.5",
     "import-in-the-middle": "1.14.2",
     "msw": "2.11.6",