Title: Error Installing Python Docker Module in Managed Environment

Description:
The installation process fails during the install docker module for Python task due to the error externally-managed-environment. This occurs because the Python environment is marked as externally managed, and direct installations using pip are restricted without using a virtual environment or passing the --break-system-packages flag.

Error Output:

Steps to Reproduce:

1. Run the make aether-gnbsim-install command as shown in the logs.
2. Observe the failure during the install docker module for Python task.

Expected Behavior:
The playbook should successfully install the Python docker module without errors.

Actual Behavior:
The task fails with a fatal error, indicating that the Python environment is externally managed.

Solution:
The issue was resolved by creating a Python virtual environment and installing the docker module within it. Here is the updated install.yml playbook snippet:

- name: Create a virtual environment for Python
  ansible.builtin.command:
    cmd: python3 -m venv /opt/dockerenv
  when: inventory_hostname in groups['gnbsim_nodes']
  become: true

- name: Install docker module for Python in virtual environment
  pip:
    name: docker
    virtualenv: /opt/dockerenv
  when: inventory_hostname in groups['gnbsim_nodes']
  become: true

Key Notes:

• Using a virtual environment isolates the Python dependencies and avoids conflicts with the system-wide package manager.
• This approach complies with the externally-managed-environment restriction in modern Python distributions.
• No need to override the restriction (--break-system-packages) or use pipx as additional tools.

Environment:

• OS: Ubuntu (specific version can be added)
• Python Version: Python 3.12
• Ansible Version: Provide the version used
• Playbook File: install.yml

Additional Updates:
The remaining tasks (such as pulling the Docker image and setting up user permissions) worked as expected without further modifications.

@llpeterson I have already solve this issue rasing a PR for this