Improving yamllint configuration (#11389)

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

roles/network_plugin/cni/tasks/main.yml

@@ -3,7 +3,7 @@
   file:
     path: /opt/cni/bin
     state: directory
-    mode: 0755
+    mode: "0755"
     owner: "{{ cni_bin_owner }}"
     recurse: true
 
@@ -11,6 +11,6 @@
   unarchive:
     src: "{{ downloads.cni.dest }}"
     dest: "/opt/cni/bin"
-    mode: 0755
+    mode: "0755"
     owner: "{{ cni_bin_owner }}"
     remote_src: yes