Improving yamllint configuration (#11389)

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

roles/kubernetes/preinstall/tasks/0061-systemd-resolved.yml

@@ -3,7 +3,7 @@
   file:
     state: directory
     name: /etc/systemd/resolved.conf.d/
-    mode: 0755
+    mode: "0755"
 
 - name: Write Kubespray DNS settings to systemd-resolved
   template:
@@ -11,5 +11,5 @@
     dest: /etc/systemd/resolved.conf.d/kubespray.conf
     owner: root
     group: root
-    mode: 0644
+    mode: "0644"
   notify: Preinstall | Restart systemd-resolved