libct: add/use configs.HasHook #7076

Job	Run time
cross-i386	1m 14s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 17s
test (ubuntu-20.04, 1.22.x, rootless)	7m 3s
test (ubuntu-20.04, 1.22.x, -race)	7m 52s
test (ubuntu-20.04, 1.22.x)	7m 1s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 8s
test (ubuntu-20.04, 1.23.x, rootless)	6m 48s
test (ubuntu-20.04, 1.23.x, -race)	7m 51s
test (ubuntu-20.04, 1.23.x)	7m 14s
test (ubuntu-20.04, 1.23.x, criu-dev)	7m 46s
test (ubuntu-24.04, 1.22.x, rootless, -race)	9m 45s
test (ubuntu-24.04, 1.22.x, rootless)	9m 29s
test (ubuntu-24.04, 1.22.x, -race)	7m 54s
test (ubuntu-24.04, 1.22.x)	6m 51s
test (ubuntu-24.04, 1.23.x, rootless, -race)	10m 1s
test (ubuntu-24.04, 1.23.x, rootless)	9m 34s
test (ubuntu-24.04, 1.23.x, -race)	8m 22s
test (ubuntu-24.04, 1.23.x)	7m 37s
test (ubuntu-24.04, 1.23.x, criu-dev)	8m 9s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 32s
test (actuated-arm64-6cpu-8gb, 1.23.x)	7m 56s
all-done	1s
	2h 44m 25s

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