YT-160: Workaround to prevent CI integration failure in 'merge-yocto' step
The GitLab CI integration job frequently fails on the 'merge-yocto' step,
specifically at the "git fetch" stage.
The issue occurs because Git fails to fetch the .gitlab-ci submodule
due to an incorrect reference, likely caused by the shallow clone
(--depth=1) configuration, which limits the commit history.Extending the clone depth to --depth=2 helps prevent this error
by providing a slightly deeper commit history,
which resolves the reference issue.