🐞 `RuntimeWarning: VSTPluginEvent: Unknown marker 6 detected`

### Describe the issue

when opening this file (i believe it came with certain versions of fruity loops studio but i've never owned the software so i don't know), this warning is printed:
```
/home/lily/.local/lib/python3.10/site-packages/pyflp/plugin.py:282: RuntimeWarning: VSTPluginEvent: Unknown marker 6 detected .Open an issue at https://github.com/demberto/PyFLP/issues if you are seeing this!
warnings.warn(
```
(yes, just that, it cuts off there)

### What version of PyFLP are you using?

2.0.0a7.post0

### What code caused this issue?

```python3
import pyflp
project = pyflp.parse("deadmau5 - Thats Not True (dream electro mix).flp")
```

### Screenshots, Additional info

_No response_

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct