restore /usr/bin/sshd in the toolbox
This partially reverts 607e56fb (it is unclear why this symlink was removed).
Without this link we are unable to run the sshd daemon inside the sandboxes.
GitLab upgrade completed. Current version is 18.5.4
https://about.gitlab.com/releases/2025/09/18/gitlab-18-4-released/
https://about.gitlab.com/releases/2025/10/16/gitlab-18-5-released/
This partially reverts 607e56fb (it is unclear why this symlink was removed).
Without this link we are unable to run the sshd daemon inside the sandboxes.