fix(docker): Install python-requests library for the docker module

This is the only dependency that the docker module needs.
So we are installing this via the system package manager. Should be fine for now, as there does not seem to be incompatibilities or a specific version being requested.

roles/docker/defaults/main.yml

@@ -55,3 +55,5 @@ docker_apt_repository: >
   deb [arch={{ docker_apt_architecture_map[ansible_architecture] }}]
   https://download.docker.com/linux/{{ ansible_distribution | lower }}
   {{ ansible_distribution_release }} stable
+
+docker_requests_python_package: "python-requests"

roles/docker/tasks/main.yml

@@ -43,3 +43,9 @@
 
 - name: Ensure handlers are notified now to avoid firewall conflicts.
   ansible.builtin.meta: flush_handlers
+
+- name: Install required python requests library
+  ansible.builtin.package:
+    name: "{{ docker_requests_python_package }}"
+    state: present
+  become: true