lxc: install apparmor on Debian 10

lxc/tasks/main.yml

@@ -7,9 +7,11 @@
       - xz-utils
       - python-lxc
 
-- name: Install lxc-templates on Buster
+- name: Install additional packages on Buster
   apt:
-    name: lxc-templates
+    name:
+      - apparmor
+      - lxc-templates
   when: ansible_distribution_major_version is version('10', '>=')
 
 - name: Copy LXC default containers configuration