Improving yamllint configuration (#11389)

Signed-off-by: Bas Meijer <bas.meijer@enexis.nl>

roles/kubernetes-apps/metrics_server/tasks/main.yml

@@ -19,7 +19,7 @@
     state: directory
     owner: root
     group: root
-    mode: 0755
+    mode: "0755"
   when:
     - inventory_hostname == groups['kube_control_plane'][0]
 
@@ -39,7 +39,7 @@
   template:
     src: "{{ item.file }}.j2"
     dest: "{{ kube_config_dir }}/addons/metrics_server/{{ item.file }}"
-    mode: 0644
+    mode: "0644"
   with_items: "{{ metrics_server_templates }}"
   register: metrics_server_manifests
   when: