[BUG] Drawings dropped on saving, 4.4.0

## 🐛 Bug Report

I'm getting some of my drawings removed while saving the file.

Lib version: 4.4.0

## Steps To Reproduce

```javascript
const wb = new ExcelJS.Workbook();
const templatePath = 'path to a given template'
const filePath = 'path to file to be saved'
await wb.xlsx.readFile(templatePath);

const sheet = wb.getWorksheet('Sheet1');

await file.xlsx.writeFile(filePath)

This is plain simple, but the template file has the following drawings:

But the resulting file has the following drawings, even though it has all the .vml files:

```

## The expected behaviour:

The drawings should stay untouched. Is there a size limit to drawings on a number of drawings limit?