fix: add paramiko ssh type for Cisco in Controller inventory group vars

The Controller inventory's cisco group was missing
ansible_network_cli_ssh_type=paramiko, so AAP job templates still
failed with the ssh-rsa rejection from libssh. This completes the
paramiko fix across all inventory sources (student, instructor, and
Controller).

Made-with: Cursor

Author: IPvSean

roles/populate_controller/vars/network.yml

@@ -165,6 +165,7 @@ controller_groups:
     variables:
       ansible_network_os: ios
       ansible_connection: network_cli
+      ansible_network_cli_ssh_type: paramiko
   - name: arista
     inventory: "Workshop Inventory"
     variables: