[WIP] Test rework, part 4 #10751

Job	Run time
test-unit	50s
lint	1m 13s
cross (1.22.x)	16s
test-integration (20.04, v1.6.36, ubuntu-20.04)	22m 40s
cross (1.23.x)	15s
test-integration (22.04, v1.7.22, ubuntu-22.04)	24m 47s
test-integration-docker-compatibility	1m 57s
test-integration (24.04, v2.0.0-rc.5, ubuntu-24.04)	21m 49s
FreeBSD	4m 52s
test-integration (24.04, v2.0.0-rc.5, github-arm64-2c-8gb)	40m 12s
test-integration-rootless (20.04, v1.6.36, v1.1.1, test-integration-rootless)	18m 59s
test-integration-windows	3m 15s
test-integration-rootless (22.04, v1.7.22, v2.3.1, test-integration-rootless)	22m 52s
test-integration-rootless (24.04, v2.0.0-rc.5, v2.3.1, test-integration-rootless)	19m 59s
test-integration-rootless (24.04, v1.7.22, v2.3.1, test-integration-rootless-port-slirp4netns)	22m 14s
test-integration-ipv6 (24.04, v1.7.22)	6m 13s
	3h 32m 23s

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