Convert netchecker to kubectl_apply_stdin

Not that the Apparmor check result is no longer used since the PSP removal.

roles/kubernetes-apps/ansible/tasks/main.yml

@@ -86,10 +86,26 @@
     - etcd_metrics
 
 - name: Kubernetes Apps | Netchecker
-  import_tasks: netchecker.yml
+  command:
+    cmd: "{{ kubectl_apply_stdin }}"
+    stdin: "{{ lookup('template', item) }}"
+  delegate_to: "{{ groups['kube_control_plane'][0] }}"
+  run_once: true
+  vars:
+    namespace: "{{ netcheck_namespace }}"
   when: deploy_netchecker
   tags:
     - netchecker
+  loop:
+    - netchecker-ns.yml.j2
+    - netchecker-agent-sa.yml.j2
+    - netchecker-agent-ds.yml.j2
+    - netchecker-agent-hostnet-ds.yml.j2
+    - netchecker-server-sa.yml.j2
+    - netchecker-server-clusterrole.yml.j2
+    - netchecker-server-clusterrolebinding.yml.j2
+    - netchecker-server-deployment.yml.j2
+    - netchecker-server-svc.yml.j2
 
 - name: Kubernetes Apps | Dashboard
   command: