I try to connect to database, but it failed. i been digging but no luck.

Connection to MongoDB failed! MongoServerSelectionError: getaddrinfo ENOTFOUND mongodb.railway.internal

```log
Connection to MongoDB failed! MongoServerSelectionError: getaddrinfo ENOTFOUND mongodb.railway.internal

at Topology.selectServer (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/sdam/topology.ts:630:30)

at async Topology._connect (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/sdam/topology.ts:462:22)

at async Topology.connect (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/sdam/topology.ts:399:7)

at async topologyConnect (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/mongo_client.ts:662:9)

at async MongoClient._connect (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/mongo_client.ts:674:7)

at async MongoClient.connect (/app/node_modules/.pnpm/mongodb@7.0.0/node_modules/mongodb/src/mongo_client.ts:586:7)
```

import mongoose from 'mongoose';
import { config } from './config';

export const connectDatabase = async () => {
  mongoose.set('strictQuery', false);
  mongoose.connection.on('connected', () => {
    // eslint-disable-next-line no-console
    console.log('Connected to MongoDB!');
  });
  mongoose.connection.on('error', (err) => {
    // eslint-disable-next-line no-console
    console.error('Connection to MongoDB failed!', err);
  });

  await mongoose.connect(config.mongo_url, { family: 6 });
};

import dns from 'node:dns';
dns.setDefaultResultOrder('ipv6first');