set apparmor_enabled in netchecker task (#8844)

roles/kubernetes-apps/ansible/tasks/netchecker.yml

 ---
+- name: Kubernetes Apps | Check AppArmor status
+  command: which apparmor_parser
+  register: apparmor_status
+  when:
+    - inventory_hostname == groups['kube_control_plane'][0]
+  failed_when: false
+
+- name: Kubernetes Apps | Set apparmor_enabled
+  set_fact:
+    apparmor_enabled: "{{ apparmor_status.rc == 0 }}"
+  when:
+    - inventory_hostname == groups['kube_control_plane'][0]
+
 - name: Kubernetes Apps | Netchecker Templates list
   set_fact:
     netchecker_templates: