gitaly: add ssh and ssh-keyscan binaries
Repository mirroring via SSH requires that the ssh and ssh-keyscan be present in the gitaly container. Install the openssh-client package as a dependency to provide them.
Closes charts/gitlab#1167
Repository mirroring via SSH requires that the ssh and ssh-keyscan be present in the gitaly container. Install the openssh-client package as a dependency to provide them.
Closes charts/gitlab#1167