(vnc-viewer) Migrate and update

[pauby]

Just been added as maintainer of this package and it needs to be migrated and updated.

[github-actions]

Thanks for raising this issue!

The packages within this repository are maintained in my spare time. My spare time, like yours is important. Please help me not to waste it.

To help me, and to have the issue resolved more quickly, please see CONTRIBUTING for how to raise a pull request to resolve the issue yourself.

Thank you.