key config change

The key config change rule identifies parameterized key change.

Problematic code

- name: Import a key from a url
  ansible.builtin.rpm_key:
    state: present
    key: http://{{ key_server }}/RPM-GPG-KEY.dag.txt

Correct code

- name: Import a key from a url
  ansible.builtin.rpm_key:
    state: present
    key: http://apt.sw.be/RPM-GPG-KEY.dag.txt