Pausing Uploads for E2EE Uploads

### ⚠️ 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. Setup a encrypted folder
2. Upload large file (ca. 200 MB for example -> chunked upload)
3. Go to uploads tab and pause upload

### Expected behaviour

The upload is paused and when resumed continues from where it stoped

### Actual behaviour

1. The upload still continues in the background and fails for some reason.
2. When pausing and resuming, the creation of the encrypted version of the file will be repeated (takes quite some time).

### Android version

12

### Device brand and model

Emulator

### Stock or custom OS?

Stock

### Nextcloud android app version

master / https://github.com/nextcloud/android/pull/12736

### Nextcloud server version

27

### Using a reverse proxy?

I don't know

### Android logs

_No response_

### Server error logs

_No response_

### Additional information

Alper knows about this issue.