As we are rolling out the user profile feature, we'd like to expand the [Usage API](https://www.elastic.co/guide/en/elasticsearch/reference/current/usage-api.html) to report usage stats of user profiles such as (1) number of enabled user profiles and (2) number of user profiles that are [activated](https://www.elastic.co/guide/en/elasticsearch/reference/current/security-api-activate-user-profile.html) over the past X days. 

Response of the Usage API already contains a `security` field that groups relevant stats from security related features. We expect the new stats for user profiles should be added under it as well, for example:
```
{
  "security: {
    "user_profile": {
      "activated": 78,
      "recently_activated": 42  <1>
    }
  }
}
```
<1> The use of `recently_` is chosen to avoid the field to be tied to a specific time period so it is easier to evolve the definition in future.

x-pack/plugin/security/qa/profile/src/javaRestTest/java/org/elasticsearch/xpack/security/profile/ProfileIT.java
}
                    }
                    """.formatted(randomBoolean() ? "\"demo\"" : "[\"demo\"]");
            }
            default -> {
                payload = """
                    {
                      "name": "rac",
                      "hint": {
                        "uids": ["%s"],
                        "labels": {
                          "kibana.spaces": %s
                        }
                      }
                    }""".formatted("not-" + uid, randomBoolean() ? "\"demo\"" : "[\"demo\"]");
            }
        }
        suggestProfilesRequest1.setJsonEntity(payload);
        final Response suggestProfilesResponse1 = adminClient().performRequest(suggestProfilesRequest1);
        final Map<String, Object> suggestProfileResponseMap1 = responseAsMap(suggestProfilesResponse1);
        @SuppressWarnings("unchecked")
        final List<Map<String, Object>> users = (List<Map<String, Object>>) suggestProfileResponseMap1.get("profiles");
        assertThat(users, hasSize(1));
        assertThat(users.get(0).get("uid"), equalTo(uid));
    }
    public void testSetEnabled() throws IOException {
        final Map<String, Object> profileMap = doActivateProfile();
        final String uid = (String) profileMap.get("uid");
        doSetEnabled(uid, randomBoolean());