Drop `packaging` dependency #782

Job	Run time
lint	7s
unit-tests (3.8)	21s
integration-tests (integration-dind)	5m 45s
unit-tests (3.9)	22s
unit-tests (3.10)	20s
integration-tests (integration-dind-ssl)	6m 8s
unit-tests (3.11)	26s
integration-tests (integration-dind-ssh)	1m 37s
unit-tests (3.12)	19s
	15m 25s

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