Gather test coverage from gitaly-git2go
Test coverage of functionality that relies on Git2Go is not currently measured as the calls happen via gitaly-git2go
subprocess. For production, this is necessary in order to support canceling the C calls. During tests though, we could additionally run internal/git2go
tests by linking directly to the functionality that is usually called via the subprocess. This would allow us to gather test coverage also for the code in the subprocess.