$ sudo apt-get update
$ sudo apt-get install jenkins-ssh-cli-auth 

jenkins-ssh-cli-auth is installed in your system.

Make ensure the jenkins-ssh-cli-auth package were installed using the commands given below,

$ sudo dpkg-query -l | grep jenkins-ssh-cli-auth *

You will get with jenkins-ssh-cli-auth package name, version, architecture and description in a table

jenkins-ssh-cli-auth package basic information: