There's a merged pull request on the void-packages repository

nextcloud-client: update to 3.7.3
https://github.com/void-linux/void-packages/pull/42361

Description:
#### Testing the changes
- I tested the changes in this PR: **yes**

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-lib)
- armv7l (crossbuild)
- i686-libc

Also:
- Add `karchive` as dependency: https://github.com/nextcloud/desktop/pull/4768
- Add patch to revert mandatory WebEngine dependency: https://github.com/nextcloud/desktop/pull/4875