[Bug] Bun bundle not work with PgLite

**What versions are running ?**

- Bun: 1.1.33
- PgLite: 0.2.12

**What steps can reproduce the bug ?**

Use the following index.ts and package.json files and run
```bash
bun build --compile --sourcemap ./index.ts --outfile executable && ./executable
```
_index.ts_
```typescript
import { PGlite } from "@electric-sql/pglite";

const db = new PGlite();
await db.waitReady;
const result = await db.query("select 'Hello world' as message;");
console.log(result);
await db.close();
```
_package.json_
```json
{
"name": "pglite-bundle",
"private": true,
"module": "index.ts",
"type": "module",
"dependencies": {
"@electric-sql/pglite": "0.2.12"
}
}
```

**What is the expected behavior ?**

The process runs successfully.

**What do you see instead ?**

The process fails with error
```
ENOENT: No such file or directory
errno: -2
syscall: "open"
path: "/$bunfs/root/postgres.data"
```