chore: upgrade Next.js and Node.js Docker image

package.json

@@ -15,7 +15,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.562.0",
-    "next": "16.1.2",
+    "next": "16.4.2",
     "nodemailer": "^7.0.12",
     "react": "19.2.3",
     "react-dom": "19.2.3",
@@ -28,7 +28,7 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "eslint": "^9",
-    "eslint-config-next": "16.1.2",
+    "eslint-config-next": "16.4.2",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.4.0",
     "typescript": "^5"