fix(deps): update nextjs monorepo to v16.1.6

Author: renovate[bot]

package-lock.json

@@ -13,7 +13,7 @@
     "@next/mdx": "^16.0.7",
     "@tailwindcss/typography": "^0.5.19",
     "@vercel/analytics": "^1.6.1",
-    "next": "16.1.5",
+    "next": "16.1.6",
     "next-plausible": "^3.12.5",
     "ogl": "^1.0.11",
     "prettier": "^3.7.4",
@@ -32,7 +32,7 @@
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
     "eslint": "^9.39.1",
-    "eslint-config-next": "16.0.11",
+    "eslint-config-next": "16.1.6",
     "tailwindcss": "^4.1.17",
     "typescript": "^5.9.3"
   }