refactor: add pre-tasks for installing Ansible collections and improve final setup messages

config/ansible/main.yml

@@ -2,6 +2,12 @@
   hosts: all
   gather_facts: true
 
+  pre_tasks:
+    - name: Install required collections
+      ansible.builtin.command: ansible-galaxy collection install -r requirements.yml
+      delegate_to: localhost
+      run_once: true
+
   tasks:
     - name: Include global tasks
       ansible.builtin.import_tasks: tasks/global/global.yml

config/ansible/requirements.yml

@@ -0,0 +1,4 @@
+---
+# Collections section
+collections:
+  - community.general