Cleans up k8s-dqlite state dir and stops it on remove hook #123

Job	Run time
Test Branch Management	46s
Python lint	13s
Go lint and unit tests / Unit Tests & Code Quality	7m 29s
Go lint and unit tests / Binaries	6m 10s
Build k8s-snap moonray / Build snap	14m 19s
Build k8s-snap / Build snap	13m 53s
Get e2e test tags	2s
Security scan / Security scan	48s
Test informing ubuntu:24.04 moonray / Integration Test ubuntu:24.04 amd64 k8s-moonray.snap	24m 5s
Test ubuntu:24.04 / Integration Test ubuntu:24.04 amd64 k8s.snap	25m 2s
Test ubuntu:20.04 / Integration Test ubuntu:20.04 amd64 k8s.snap	25m 2s
Test ubuntu:22.04 / Integration Test ubuntu:22.04 amd64 k8s.snap	34m 24s
	2h 32m 13s

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