[Temperature & Humidity] Timed out
Hi,

I'm using homebridge-mi-hygrothermograph 3.0.2 already a while since more than a year and the plugin is constantly loosing connection after a couple of minutes/hours. Only a restart of the homebridge helps until it causes the output again after a few minutes/hours:
```
[Temperature & Humidity] [xx:xx:xx:xx:xx:xx] Timed out, last update: 2020-10-26T07:38:48.702Z
```

Already tried a bunch of various types of configuration from other similar closed issues, but none helped.

### Expected Behavior
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<!-- If you're suggesting a change/improvement, tell us how it should work -->
Homebridge should get regular updates from the Temperature & Humidity plugin without a time out.

### Current Behavior
<!-- If describing a bug, tell us what happens instead of the expected behavior -->
<!-- If suggesting a change/improvement, explain the difference from current behavior -->
Temperature & Humidity plugin constantly looses connection to homebridge after a while and homekit is showing no response.

### Steps to Reproduce (for bugs)
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Already moved it a couple of times closer, even laid it down next to the Raspberry. As mentioned above, only a restart resets the connection for an uncertain period of time.

### Versions
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- **homebridge**: 1.1.6
- **homebridge-mi-hygrothermograph**: 3.0.2
- **node**:       v12.19.0
- **OS**:         Raspbian GNU/Linux 9 (stretch)

### Configuration
<!-- If relevant, include the contents of your config.json file between the two ``` lines below.
  - Remove any sensitive information, passwords, etc.
  - If output is long:
    - Please extract only the relevant portions if possible
    - Consider creating a gist, etc
 -->
```        
            "name": "Temperature & Humidity",
            "temperatureName": "Temperature",
            "humidityName": "Humidity",
            "accessory": "Hygrotermograph",
            "address": "xx:xx:xx:xx:xx:xx",
            "timeout": 15,
            "forceDiscovering": true,
            "forceDiscoveringDelay": 900,
            "lowBattery": 10,
            "temperatureOffset": 0,
            "humidityOffset": 0,
            "fakeGatoEnabled": true,
            "fakeGatoStoragePath": "/var/homebridge/"
```

### Homebridge Log / Command Output
<!-- Paste relevant output between the two ``` lines below
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  - If output is long:
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  - However, please include the beginning of the log where the homebridge initialization happens if possible
-->
```
[Temperature & Humidity] [xx:xx:xx:xx:xx:xx] Timed out, last update: 2020-10-26T07:38:48.702Z
```
