actions: build .deb & fixes

[DSpeichert]

Pull Request Prelude

• [x] I have followed proper The Forgotten Server code styling.
• [x] I have read and understood the contribution guidelines before making this PR.
• [x] I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

Issues addressed:

• Ubuntu builds were not properly uploading binary to artifacts
• a .deb package is now uploaded too
• test workflow does not run unnecessarily

[ranisalt]

I doubt enough people use raw TFS without changes to warrant maintaining this.

[DSpeichert]

I doubt enough people use raw TFS without changes to warrant maintaining this.

It's mostly easy of use for those who are sticking to a tagged branch, especially if I figure out a way to maintain an APT repo. Doesn't cost us anything to keep it here.

[ranisalt]

People can always use Docker for that, which is way easier, and works in every distro.

Doesn't cost us anything to keep it here.

I can see it does just by looking at the package list and seeing different packages from that Ubuntu and vcpkg install. It's a third list of dependencies (not counting the ones on the wiki) that we need to keep updated and that we will not keep updated