conflict if server takes too long to process uploaded file

### Steps to reproduce
1. Have a slow server (f.e. a Raspberry Pi )
2. upload a large file
3. File is on 100% for some time, gives an unknown error and tries to re-upload although it has already been uploaded and the server is processing it

### Expected behaviour
- It should not try to re-upload the file or skip it, because the checksum is the same and it should not fail if the server needs more time to process the upload
### Actual behaviour
- It fails after ~ 1 minute and tries to re-upload to whole file again

### Can you reproduce this problem on https://try.nextcloud.com?
No, because the servers are way faster

### Environment data
Android version: Android 12

Device model: Motorola edge plus

Stock or customized system: stock

Nextcloud app version: 3.20.3

Nextcloud server version: 24.0.1

Reverse proxy: yes, nginx with YunoHost

### Logs
#### Web server error log
```
Nothing about Nextcloud, just something about my matrix server
```

#### Nextcloud log (data/nextcloud.log)
```
Nothing about this specific problem
```