build(deps-dev): Bump eslint-config-next from 15.5.5 to 15.5.6

Bumps [eslint-config-next](https://github.com/vercel/next.js/tree/HEAD/packages/eslint-config-next) from 15.5.5 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]

package-lock.json

@@ -72,7 +72,7 @@
     "@vitest/coverage-v8": "^3.2.4",
     "@vitest/ui": "^3.2.4",
     "eslint": "^9.23.0",
-    "eslint-config-next": "^15.5.5",
+    "eslint-config-next": "^15.5.6",
     "jsdom": "^27.0.0",
     "postcss": "^8.5.3",
     "prettier": "^3.5.3",