Update .gitlab-ci.yml

1 job for master in 19 seconds (queued for 3 seconds)
Name Stage Failure
failed
Test SSH Test

-P prompt Which string should sshpass search for to detect a password prompt
-v Be verbose about what you're doing
-h Show help (this screen)
-V Print version information
At most one of -f, -d, -p or -e should be used
$ echo "$SSH_PRIVATE_KEY" | base64 -d | tr -d '\r' | ssh-add - > /dev/null
Enter passphrase for (stdin):
Cleaning up file based variables
ERROR: Job failed: exit code 1