The new Desired Nodes API was introduced it #82975. We need to make it [operator-only](https://www.elastic.co/guide/en/elasticsearch/reference/8.3/operator-only-functionality.html#operator-only-functionality).
x-pack/plugin/security/qa/operator-privileges-tests/src/javaRestTest/java/org/elasticsearch/xpack/security/operator/Constants.java
"cluster:admin/xpack/ml/job/model_snapshots/upgrade/cancel",
        "cluster:admin/xpack/ml/job/open",
        "cluster:admin/xpack/ml/job/persist",
        "cluster:admin/xpack/ml/job/put",
        "cluster:admin/xpack/ml/job/reset",
        "cluster:admin/xpack/ml/job/update",
        "cluster:admin/xpack/ml/job/validate",
        "cluster:admin/xpack/ml/job/validate/detector",
        "cluster:admin/xpack/ml/trained_models/deployment/start",
        "cluster:admin/xpack/ml/trained_models/deployment/stop",
        "cluster:admin/xpack/ml/trained_models/part/put",
        "cluster:admin/xpack/ml/trained_models/vocabulary/put",
        "cluster:admin/xpack/ml/upgrade_mode",
        "cluster:admin/xpack/monitoring/bulk",
        "cluster:admin/xpack/monitoring/migrate/alerts",
        "cluster:admin/xpack/rollup/delete",
        "cluster:admin/xpack/rollup/put",
        "cluster:admin/xpack/rollup/start",
        "cluster:admin/xpack/rollup/stop",
        "cluster:admin/xpack/searchable_snapshots/cache/clear",
        "cluster:admin/xpack/searchable_snapshots/cache/stats",
        "cluster:admin/xpack/security/api_key/create",
        "cluster:admin/xpack/security/api_key/get",
        "cluster:admin/xpack/security/api_key/grant",
        "cluster:admin/xpack/security/api_key/invalidate",
        "cluster:admin/xpack/security/api_key/query",
        "cluster:admin/xpack/security/cache/clear",
        "cluster:admin/xpack/security/delegate_pki",
        "cluster:admin/xpack/security/enroll/node",
        "cluster:admin/xpack/security/enroll/kibana",