Problem loading SVG with image element inside

I have SVG which includes `image` element


This small script should load SVG image and convert into png buffer.

```
import { writeFileSync } from 'fs';
import { loadImage, createCanvas } from 'canvas';
let img = await loadImage('test1.svg');
const canvas = createCanvas(img.width, img.height, 'png');
canvas.getContext('2d').drawImage(img, 0, 0, img.width, img.height);
let buf = canvas.toBuffer('image/png');
writeFileSync('test1.png', buf);
console.log(`Writing image ${img.width} x ${img.height} png file ${buf.byteLength}`);
```

But on png one do not see `image` - at the same time text is there


Is it known problem?

## Your Environment
* Version of node-canvas: 2.11.2
* Environment: node v20.2.0 on Linux 64bit