Fix kubernetes-dashboard template identation (#6066)

The 98e7a07fba commit udpates the
dashboard version to 2.0.0 but it enable skip login flag wasn't
updated. This change updates its identation to avoid issues when
dashboard_skip_login is enabled.

roles/kubernetes-apps/ansible/templates/dashboard.yml.j2

@@ -178,7 +178,7 @@ spec:
             - --auto-generate-certificates
 {% endif %}
 {% if dashboard_skip_login %}
-          - --enable-skip-login
+            - --enable-skip-login
 {% endif %}
             - --authentication-mode=token{% if kube_basic_auth|default(false) %},basic{% endif %}
             # Uncomment the following line to manually specify Kubernetes API server Host