Unable to cancel stalled upload

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. Try uploading a file.
2. The upload stalls for any reason.
3. Try to cancel the upload.

### Expected behaviour

The upload is canceled.

### Actual behaviour

Clicking on cancel does nothing. The upload stays visible with whatever % has been completed forever. Due to this, it's impossible to re-upload the file.

### Android version

16

### Device brand and model

Galaxy Fold 5

### Stock or custom OS?

Stock

### Nextcloud android app version

3.34.1

### Nextcloud server version

32.0.3

### Using a reverse proxy?

Yes

### Android logs

_No response_

### Server error logs

```bash

```

### Additional information

_No response_