fix : Remove merge conflict for adding extra containers on merge request !303
What does this MR do?
It remove merge request conflicts for the merge request !303 (closed) . The feature of extra containers would be very useful for all the community.
Why was this MR needed?
It enables users of this Helm chart to customize their gitlab-runner deployment according to their specific requirements (e.g. to add a Docker-In-Docker sidecar to provide access to a Docker daemon for gitlab-runners running on Kubernetes clusters with containerd).