Ensure Passwords are Redacted in Agent Log Files

I've noticed that 'agent-cluster-install.yaml' and 'journal.export' from the agent gather process contain passwords. It's important not to expose password information in any of these generated files.

4.15   

Always    

    1. Generate an agent ISO by utilising agent-config and install-config, including platform credentials
    2. Boot the ISO that was created
    3. Run the agent-gather command on the node 0 machine to generate files.

The 'agent-cluster-install.yaml' and 'journal.export' are containing the passwords information.

Password should be redacted.