[Bug] Excluding keys by default doesn't work
### Is there an existing issue for this?

- [X] I have searched the existing issues

### Describe the bug

Tried to exclude a few properties/keys by default (`occupied_cooling_setpoint` to be specific) so I don't have to manually add a new configuration entry for every single thermostat discovered via MQTT to actually make them appear in Home.

Unfortunately, it seems like this doesn't work as expected, and excluded keys are still present on the newly discovered accessories.
However, excluding keys on a per-device basis works fine.

### Related devices

_No response_

### Related Devices

_No response_

### Steps To Reproduce

_No response_

### Expected behavior

_No response_

### Device entry

_No response_

### Status update

_No response_

### Messages from this plugin

_No response_

### This plugin

1.11.0-beta.5

### Homebridge

1.7.0

### Zigbee2MQTT

1.37.1-dev

### Homebridge Config UI X (if applicable)

4.56.2