API Response Mismatch in `GetNetworkNetworkHealthChannelUtilization`

[gpop63]

The GetNetworkNetworkHealthChannelUtilization method in this library expects a different JSON response format than what the API actually returns.

Example of what is expected:

    {
        "serial": "Q234-ABCD-5678",
        "model": "MR34",
        "tags": " recently-added ",
        "wifi0": [
            {
                "startTime": "2018-10-09T22:18:27Z",
                "endTime": "2018-10-09T22:19:27Z",
                "utilizationTotal": 33.84,
                "utilization80211": 32,
                "utilizationNon80211": 1.84
            }
        ],
        "wifi1": [
            {
                "startTime": "2018-10-09T22:18:27Z",
                "endTime": "2018-10-09T22:19:27Z",
                "utilizationTotal": 33.84,
                "utilization80211": 32,
                "utilizationNon80211": 1.84
            }
        ]
    }

Example of what is actually returned:

{
  "serial": "REDACTED",
  "model": "REDACTED",
  "tags": "REDACTED",
  "wifi0": [
    {
      "utilization": 33.19,
      "wifi": 31.55,
      "non_wifi": 1.64,
      "start_ts": "2025-03-19T13:10:00Z",
      "end_ts": "2025-03-19T13:20:00Z"
    },
    {
      "utilization": 35.64,
      "wifi": 33.97,
      "non_wifi": 1.67,
      "start_ts": "2025-03-19T13:20:00Z",
      "end_ts": "2025-03-19T13:30:00Z"
    },
    {
      "utilization": 38.12,
      "wifi": 36.49,
      "non_wifi": 1.63,
      "start_ts": "2025-03-19T13:30:00Z",
      "end_ts": "2025-03-19T13:40:00Z"
    }
  ]
}