Improving yamllint configuration (#11389)

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

roles/kubernetes-apps/csi_driver/gcp_pd/tasks/main.yml

@@ -9,7 +9,7 @@
     src: "{{ gcp_pd_csi_sa_cred_file }}"
     dest: "{{ kube_config_dir }}/cloud-sa.json"
     group: "{{ kube_cert_group }}"
-    mode: 0640
+    mode: "0640"
   when: inventory_hostname == groups['kube_control_plane'][0]
 
 - name: GCP PD CSI Driver | Get base64 cloud-sa.json
@@ -22,7 +22,7 @@
   template:
     src: "{{ item.file }}.j2"
     dest: "{{ kube_config_dir }}/{{ item.file }}"
-    mode: 0644
+    mode: "0644"
   with_items:
     - {name: gcp-pd-csi-cred-secret, file: gcp-pd-csi-cred-secret.yml}
     - {name: gcp-pd-csi-setup, file: gcp-pd-csi-setup.yml}