Fix Ansible deprecation warning

[danclough]

This pull request resolves the Ansible deprecation warning observed in newer Ansible versions which advises to use ansible_facts instead of ansible_ variables.

[WARNING]: Deprecation warnings can be disabled by setting `deprecation_warnings=False` in ansible.cfg.
[DEPRECATION WARNING]: INJECT_FACTS_AS_VARS default to `True` is deprecated, top-level facts will not be auto injected after the change. This feature will be removed from ansible-core version 2.24.
Origin: roles/weareinteractive.sudo/tasks/vars.yml:6:7
4   include_vars: "{{ item }}"
5   with_first_found:
6     - "{{ ansible_distribution }}.yml"
        ^ column 7
Use `ansible_facts["fact_name"]` (no `ansible_` prefix) instead.

Thanks for all your work to create this excellent Ansible role!