net-im/tuba: Fix WRKSRC after switch to Codeberg
In the previous update commit, I wasn't tested Codeberg distribution
file but rather the GitHub one and I noticed that Codeberg archive
extracts Tuba without the version information. Sorry.
Fixes: b56a69e9705d ("net-im/tuba: Update 0.10.3 => 0.11.0")
Approved by: osa, vvd (Mentors, implicit)