ci: disable unused Go lint
Created by: rvantonder
This lint may be useful, and there may be a better way to do this. It's caused a number of FPs example and I just want to stop red builds.
I suspect it is a combination of our CI and the linter that causes this to crop up unpredictably. I don't know how to reliably reproduce it. I confirmed adding -e unused
stops this lint report with a manual example.