Improving yamllint configuration (#11389)

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

roles/kubernetes/client/tasks/main.yml

@@ -80,7 +80,7 @@
   copy:
     content: "{{ final_admin_kubeconfig | to_nice_yaml(indent=2) }}"
     dest: "{{ artifacts_dir }}/admin.conf"
-    mode: 0600
+    mode: "0600"
   delegate_to: localhost
   connection: local
   become: no
@@ -106,7 +106,7 @@
       #!/bin/bash
       ${BASH_SOURCE%/*}/kubectl --kubeconfig=${BASH_SOURCE%/*}/admin.conf "$@"
     dest: "{{ artifacts_dir }}/kubectl.sh"
-    mode: 0755
+    mode: "0755"
   become: no
   run_once: yes
   delegate_to: localhost