community/tigervnc: fix depends
Fix depends based on error messages that appear when tigervnc is installed without also having xorg-server installed.
We are currently working on getting Alpine Linux 3.21 out. This means that merge requests that are not aimed to help with that (only affecting testing, new aports) have a lower priority at the moment. Please be patient, they will be eventually picked up.
Fix depends based on error messages that appear when tigervnc is installed without also having xorg-server installed.