- clean go cache at the role level
- use go env GOMODCACHE for path resolution
- add become: true to prevent permission issues
- check stdout instead of stderr for go clean -x --cache
- cache cleaning is skipped by default
- fix lint errors
At the moment, the check-if-duplicate-action needs a bit more tinkering, since
it will skip testing other PRs, if the previous one was successful. Another thing
that might need a revision is to make the duplicate checking job be a bit more subtle
and not be visible where it shouldn't be.
