Fix risky-file-permissions (#8370)

When running ansible-lint directly, we can see a lot of warning
message like

  risky-file-permissions File permissions unset or incorrect

This fixes the warning messages.

roles/network_plugin/weave/tasks/main.yml

@@ -3,8 +3,10 @@
   template:
     src: weave-net.yml.j2
     dest: "{{ kube_config_dir }}/weave-net.yml"
+    mode: 0644
 
 - name: Weave | Fix nodePort for Weave
   template:
     src: 10-weave.conflist.j2
     dest: /etc/cni/net.d/10-weave.conflist
+    mode: 0644