chore(linea-ens-app): upgrade Next.js (#357)

Author: alainncls

packages/linea-ens-app/package.json

@@ -79,7 +79,7 @@
     "iso-639-1": "^2.1.15",
     "lodash": "^4.17.21",
     "markdown-to-jsx": "^7.1.7",
-    "next": "15.2.4",
+    "next": "15.2.6",
     "p-memoize": "^7.1.1",
     "pino-pretty": "^10.3.1",
     "react": "^18.2.0",