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/kubernetes-apps/metallb/tasks/main.yml

@@ -34,7 +34,10 @@
 
 - name: Kubernetes Apps | Lay Down MetalLB
   become: true
-  template: { src: "{{ item }}.j2", dest: "{{ kube_config_dir }}/{{ item }}" }
+  template:
+    src: "{{ item }}.j2"
+    dest: "{{ kube_config_dir }}/{{ item }}"
+    mode: 0644
   with_items: ["metallb.yml", "metallb-config.yml"]
   register: "rendering"
   when: