Executing "step_script" stage of the job script$ which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )/usr/bin/ssh-agent$ eval $(ssh-agent -s)Agent pid 19$ ssh-add <(echo "$GITHUB_SSH_PRIV_KEY")Error loading key "/dev/fd/63": invalid formatCleaning up file based variablesERROR: Job failed: exit code 1