GetApplicationProcessStatisticsResponse fails for DOWN process because ProcessStatisticsResource build fails

[keviningvalson]

ProcessStatisticsResource is inconsistent with possible responses from https://v3-apidocs.cloudfoundry.org/version/3.87.0/index.html#the-process-stats-object for processes in a down state

Cannot construct instance of `org.cloudfoundry.client.v3.processes.ProcessStatisticsResource`, problem: Cannot build ProcessStatisticsResource, some of required attributes are not set [diskQuota, fileDescriptorQuota, host, memoryQuota, usage]
 at [Source: (byte[])"{
  "resources": [
    {
      "type": "web",
      "index": 0,
      "state": "DOWN",
      "uptime": 0,
      "isolation_segment": null,
      "details": null
    }
  ]
}"; line: 10, column: 5] (through reference chain: org.cloudfoundry.client.v3.applications.GetApplicationProcessStatisticsResponse$Json["resources"]->java.util.ArrayList[0])

org.cloudfoundry.client.v3.processes.ProcessStatistics as used by org.cloudfoundry.client.v3.applications. _GetApplicationProcessStatisticsResponse does not include @nullable for fields absent in the builder error noted above.