Review Build CNG fails if the last commit skips CI
When the pipeline is testing the HEAD~ commit of the branch, the pipeline fails as the git clone depth is set to 1, example would be: https://gitlab.com/gitlab-org/gitlab-ce/-/jobs/181541569
I think the depth of 25 is more appropriate as it would still save bandwidth, but also guard against changelog entry pushes that are CI skip.
/cc @rymai