fix(deps): update nextjs monorepo to v15.5.1

Author: renovate[bot]

package.json

@@ -28,7 +28,7 @@
     "feed": "^4.2.2",
     "hono": "^4.9.2",
     "lucide-react": "^0.540.0",
-    "next": "15.4.6",
+    "next": "15.5.1",
     "next-contentlayer2": "^0.5.8",
     "postcss": "8.5.6",
     "react": "19.1.1",
@@ -47,15 +47,15 @@
   "devDependencies": {
     "@eslint/eslintrc": "^3.3.1",
     "@eslint/js": "^9.33.0",
-    "@next/bundle-analyzer": "15.4.6",
+    "@next/bundle-analyzer": "15.5.1",
     "@next/eslint-plugin-next": "^15.4.6",
     "@types/node": "^22.17.2",
     "@types/react": "19.1.10",
     "@types/react-dom": "19.1.7",
     "@typescript-eslint/eslint-plugin": "^8.39.1",
     "@typescript-eslint/parser": "^8.39.1",
     "eslint": "^9.33.0",
-    "eslint-config-next": "15.4.6",
+    "eslint-config-next": "15.5.1",
     "eslint-config-prettier": "^10.0.0",
     "eslint-plugin-import": "^2.32.0",
     "eslint-plugin-react": "^7.37.5",