Cleanly shut down the serial port on disconnect #309

Job	Run time
shared-ci / Prepare base dependencies (3.9.15)	17s
shared-ci / Prepare base dependencies (3.9.15)	23s
shared-ci / Prepare base dependencies (3.10.8)	20s
shared-ci / Prepare base dependencies (3.10.8)	14s
shared-ci / Prepare base dependencies (3.11.0)	23s
shared-ci / Prepare base dependencies (3.11.0)	18s
shared-ci / Prepare base dependencies (3.12)	15s
shared-ci / Prepare base dependencies (3.12)	8s
shared-ci / Prepare base dependencies (3.13)	19s
shared-ci / Prepare base dependencies (3.13)	17s
shared-ci / Run pre-commit	18s
shared-ci / Run pre-commit	21s
shared-ci / Run tests Python 3.9.15	34s
shared-ci / Run tests Python 3.9.15	27s
shared-ci / Run tests Python 3.10.8	32s
shared-ci / Run tests Python 3.10.8	38s
shared-ci / Run tests Python 3.11.0	30s
shared-ci / Run tests Python 3.11.0	30s
shared-ci / Run tests Python 3.12	24s
shared-ci / Run tests Python 3.12	22s
shared-ci / Run tests Python 3.13	30s
shared-ci / Run tests Python 3.13	32s
shared-ci / Process test coverage	0s
shared-ci / Process test coverage	0s
	8m 32s

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