apiserver: fix incorrect path to admission plugins config files (#11801)

Co-authored-by: Max Gautier <mg@max.gautier.name>

roles/kubernetes/control-plane/templates/admission-controls.yaml.j2

@@ -4,6 +4,6 @@ plugins:
 {% for plugin in kube_apiserver_enable_admission_plugins %}
 {% if plugin in kube_apiserver_admission_plugins_needs_configuration %}
 - name: {{ plugin }}
-  path: {{ kube_config_dir }}/{{ plugin | lower }}.yaml
+  path: {{ kube_config_dir }}/admission-controls/{{ item | lower }}.yaml.yaml
 {% endif %}
 {% endfor %}