F-droid signature mismatch with latest github release

### ⚠️ 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. Install F-Droid version
2. Attempt to install latest nextcloud*.apk from the releases here on github, NOT the Google play version.

### Expected behaviour

The app should update successfully to the latest version.

### Actual behaviour

It says `App not installed as package conflicts with an existing package`

### Android version

13

### Device brand and model

Motorola Moto G Stylus 2022 5G

### Stock or custom OS?

Stock

### Nextcloud android app version

3.32.0

### Nextcloud server version

31.0.7

### Using a reverse proxy?

Yes

### Android logs

This is with an android app installation. It is a conflicting signature or the version in the new app is lower than the one in the fdroid store.

### Server error logs

```bash

```

### Additional information

_No response_