Hello,
In regards of;
You can install pip packages on AWX in runtime using this module:
https://docs.ansible.com/ansible/latest/collections/ansible/builtin/pip_module.html
So, you may add this task at the beginning of your playbook (maybe a pre-task would fit better):
- name: Install python package
ansible.builtin.pip:
name: ansible-pylibssh
Not a very efficient way to add pip dependencies on a running AWX EE though, but good enough for debugging purposes anyway