Move test helper binaries #7056

Job	Run time
cross-i386	28s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 16s
test (ubuntu-20.04, 1.22.x, rootless)	6m 40s
test (ubuntu-20.04, 1.22.x, -race)	7m 20s
test (ubuntu-20.04, 1.22.x)	6m 24s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 6s
test (ubuntu-20.04, 1.23.x, rootless)	6m 47s
test (ubuntu-20.04, 1.23.x, -race)	7m 35s
test (ubuntu-20.04, 1.23.x)	6m 55s
test (ubuntu-20.04, 1.23.x, criu-dev)	7m 44s
test (ubuntu-24.04, 1.22.x, rootless, -race)	9m 21s
test (ubuntu-24.04, 1.22.x, rootless)	9m 38s
test (ubuntu-24.04, 1.22.x, -race)	6m 33s
test (ubuntu-24.04, 1.22.x)	6m 47s
test (ubuntu-24.04, 1.23.x, rootless, -race)	10m 5s
test (ubuntu-24.04, 1.23.x, rootless)	9m 30s
test (ubuntu-24.04, 1.23.x, -race)	7m 58s
test (ubuntu-24.04, 1.23.x)	7m 18s
test (ubuntu-24.04, 1.23.x, criu-dev)	8m 17s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 27s
test (actuated-arm64-6cpu-8gb, 1.23.x)	7m 29s
all-done	1s
	2h 38m 39s

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