Potential fix for code scanning alert no. 12: Accepting unknown SSH host keys when using Paramiko

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: netboxlabs-nvp

setup/helpers/netbox_proxmox_cluster.py

@@ -82,8 +82,8 @@ def __get_proxmox_node_info_cmd(self, proxmox_node_info: dict, run_command: str)
         # Create an SSH client instance
         client = paramiko.SSHClient()
 
-        # Set policy for handling unknown host keys (AutoAddPolicy for convenience, RejectPolicy for security in production)
-        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        # Set policy for handling unknown host keys (RejectPolicy for security)
+        client.set_missing_host_key_policy(paramiko.RejectPolicy())
 
         # Connect to the server
         try: