File not saving in private storage without WRITE_EXTERNAL_STORAGE permission

**Describe the bug**

The download reaches 100% and stays there indefinitely. I observed that when the download is enqueued, it creates a file in the directory. At 100%, it removes the file and stays stuck at 100% without any error. However, when the WRITE_EXTERNAL_STORAGE permission is granted to the app, the plugin works normally and stores the file. Why WRITE_EXTERNAL_STORAGE permission is required even when saving in private storage?

File is stored in getApplicationDocumentsDirectory().path

**To Reproduce**

Steps to reproduce the behavior:

1. Start download in private directory
2. Download reaches 100% without completion

**Expected behavior**

Download should be completed and the file should not be deleted.

**Screenshots**

**Desktop (please complete the following information):**

- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Device information:**

- Device: Pixel 6a Emulator
- OS: Android 9.0 API 28
- plugin version 1.11.7

**Additional context**

```
FlutterDownloader.enqueue(
url: url,
savedDir: path.join(((await getApplicationDocumentsDirectory()).path), "offline"),
requiresStorageNotLow: false,
fileName: "testfile",
allowCellular: true,
saveInPublicStorage: false,
showNotification: true,
openFileFromNotification: false,
)
```