fix: rename files to .yaml

tasks/main.yaml

@@ -1,7 +1,7 @@
 ---
 
 - name: Include OS-specific variables
-  ansible.builtin.include_vars: "{{ ansible_os_family }}.yml"
+  ansible.builtin.include_vars: "{{ ansible_facts['os_family'] }}.yaml"
 
 - name: Install git and dependencies
   vars:
@@ -19,6 +19,6 @@
     with_items: "{{ _git_package_names }}"
 
 - name: Configure git
-  ansible.builtin.include_tasks: git_user.yml
+  ansible.builtin.include_tasks: git_user.yaml
   with_dict:
   - "{{ git_users }}"