Use zigpy `SerialProtocol` (#256) #469

Job	Run time
shared-ci / Prepare base dependencies (3.9.15)	19s
shared-ci / Prepare base dependencies (3.10.8)	19s
shared-ci / Prepare base dependencies (3.11.0)	22s
shared-ci / Prepare base dependencies (3.12)	14s
shared-ci / Prepare base dependencies (3.13)	23s
shared-ci / Run pre-commit	55s
shared-ci / Run tests Python 3.9.15	1m 29s
shared-ci / Run tests Python 3.10.8	1m 31s
shared-ci / Run tests Python 3.11.0	1m 31s
shared-ci / Run tests Python 3.12	1m 28s
shared-ci / Run tests Python 3.13	1m 35s
shared-ci / Process test coverage	0s
	10m 6s

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