Register the command response listener before writing to the UART

[puddly]

See home-assistant/core#109931.

More precisely:

2024-02-08 00:17:53.874 DEBUG (MainThread) [zigpy.application] Feeding watchdog
2024-02-08 00:17:53.874 DEBUG (MainThread) [zigpy_deconz.api] Sending CommandId.write_parameter{'parameter_id': <NetworkParameter.watchdog_ttl: 38>, 'parameter': b'<\x00\x00\x00'} (seq=98)
2024-02-08 00:17:53.874 DEBUG (MainThread) [zigpy_deconz.uart] Send: 0b62000c000500263c000000
2024-02-08 00:17:53.876 DEBUG (MainThread) [zigpy_deconz.uart] Frame received: 0x0b62000800010026
2024-02-08 00:17:53.876 DEBUG (MainThread) [zigpy_deconz.api] Received command CommandId.write_parameter{'status': <Status.SUCCESS: 0>, 'frame_length': 8, 'payload_length': 1, 'parameter_id': <NetworkParameter.watchdog_ttl: 38>} (seq 98)
2024-02-08 00:17:55.675 DEBUG (MainThread) [zigpy_deconz.api] No response to 'CommandId.write_parameter' command with seq 98

It appears that we can write to the serial port and receive a response before the listener is registered a few lines down.

This is a bug probably exposed by us switching to pyserial-asyncio-fast.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (df9c0c6) 98.69% compared to head (b29cb4f) 98.81%.
Report is 2 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #248      +/-   ##
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+ Coverage   98.69%   98.81%   +0.11%     
==========================================
  Files           7        7              
  Lines         920      925       +5     
==========================================
+ Hits          908      914       +6     
+ Misses         12       11       -1     

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