"Upload failed" notification even though there was no error

### ⚠️ 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. use Android 9
2. upload anything to Nextcloud through Android app
3. an "upload failed" notification will appear (but the file was successfully uploaded)

Happens for every upload. Upload is always successful.

````
Upload failed
Could not complete operation. Server unavailable.
`````

It works with later Android versions (tested with Android 14).

### Expected behaviour

No error notification if there was no error.

### Actual behaviour

Error is always shown.

### Android version

9

### Device brand and model

Samsung S8

### Stock or custom OS?

Stock

### Nextcloud android app version

3.28.2

### Nextcloud server version

28.0.3.2

### Using a reverse proxy?

No

### Android logs

_No response_

### Server error logs

_No response_

### Additional information

_No response_