Improving yamllint configuration (#11389)

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

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

@@ -5,7 +5,7 @@
     state: directory
     owner: root
     group: root
-    mode: 0755
+    mode: "0755"
   when: inventory_hostname == groups['kube_control_plane'][0]
   tags:
     - scheduler_plugins
@@ -14,7 +14,7 @@
   template:
     src: "{{ item.file }}.j2"
     dest: "{{ kube_config_dir }}/scheduler-plugins/{{ item.file }}"
-    mode: 0644
+    mode: "0644"
   with_items:
     - { name: appgroup, file: appgroup.diktyo.x-k8s.io_appgroups.yaml, type: crd }
     - { name: networktopology, file: networktopology.diktyo.x-k8s.io_networktopologies.yaml, type: crd }