Use vendor dir for test/builds
What does this MR do?
Use vendor dir for test/builds
Why was this MR needed?
We have the vendor directory so that we are aware of how the Runner is
being build. If the project is cloned outside of the $GOPATH the, any
go cmd will pull everything from the internet unless you specify to
use the vendor dir.
This shouldn't be the case in 1.14 https://github.com/golang/go/issues/33848 anymore but at the moment we are always pulling everything from the internet for building for example https://gitlab.com/gitlab-org/gitlab-runner/-/jobs/444793271.
reference #5045 (closed)