fix: replace deprecated INJECT_FACTS_AS_VARS

tasks/main.yaml

@@ -7,7 +7,17 @@
     fail_msg: "No subnet defined"
 
 - name: Include OS-specific variables
-  ansible.builtin.include_vars: "{{ ansible_facts['os_family'] }}.yaml"
+  ansible.builtin.include_vars: "{{ lookup('first_found', params) }}"
+  vars:
+    params:
+      files:
+      - "{{ ansible_facts['distribution'] }}_{{ ansible_facts['architecture'] }}.yaml"
+      - "{{ ansible_facts['distribution'] }}.yaml"
+      - "{{ ansible_facts['os_family'] }}_{{ ansible_facts['architecture'] }}.yaml"
+      - "{{ ansible_facts['os_family'] }}.yaml"
+      - main.yaml
+      paths:
+      - vars
 
 - name: Install dhcpd with dependencies
   ansible.builtin.package: