oci identity-domains dynamic-resource-group(s) does not export matching-rule(s); all 'null'

[Airell]

Unlike the oci iam dynamic-group equivalent, oci identity-domains dynamic-resource-group and oci identity-domains dynamic-resource-groups do not export the matching rules:

"idcs-last-upgraded-in-release": null,
"idcs-prevented-operations": null,
"matching-rule": null,          <=== this is always null
"meta": {
  "created": "2025-04-24T10:39:23.350Z",
  "last-modified": "2025-04-24T10:39:23.350Z",

Airell.