CI

Added Python 3.13 to CI (#440) #217

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Run time

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Job	Run time
unittest (3.8)	30s
unittest (3.9)	25s
unittest (3.10)	28s
unittest (3.11)	24s
unittest (3.12)	33s
unittest (3.13)	41s
integration (3.8)	1m 7s
integration (3.9)	1m 4s
integration (3.10)	1m 3s
integration (3.11)	1m 7s
integration (3.12)	1m 10s
integration (3.13)	1m 13s
lint (3.13)	47s
	10m 32s