fix checkpoint/restore tests on actuated-arm64 #6064

Job	Run time
cross-i386	1m 33s
cross-i386 (runc_nodmz)	1m 22s
test (ubuntu-20.04, 1.20.x, rootless, -race)	6m 27s
test (ubuntu-20.04, 1.20.x, rootless)	6m 4s
test (ubuntu-20.04, 1.20.x, -race)	7m 23s
test (ubuntu-20.04, 1.20.x)	6m 35s
test (ubuntu-20.04, 1.21.x, rootless, -race)	6m 42s
test (ubuntu-20.04, 1.21.x, rootless)	6m 11s
test (ubuntu-20.04, 1.21.x, -race)	7m 13s
test (ubuntu-20.04, 1.21.x)	6m 33s
test (ubuntu-20.04, 1.21.x, criu-dev)	7m 7s
test (ubuntu-22.04, 1.20.x, rootless, -race)	10m 24s
test (ubuntu-22.04, 1.20.x, rootless)	10m 12s
test (ubuntu-22.04, 1.20.x, -race)	8m 32s
test (ubuntu-22.04, 1.20.x)	8m 1s
test (ubuntu-22.04, 1.21.x, rootless, -race)	10m 29s
test (ubuntu-22.04, 1.21.x, rootless)	10m 14s
test (ubuntu-22.04, 1.21.x, -race)	8m 38s
test (ubuntu-22.04, 1.21.x)	7m 51s
test (ubuntu-22.04, 1.21.x, runc_nodmz)	7m 58s
test (ubuntu-22.04, 1.21.x, criu-dev)	8m 36s
test (actuated-arm64-6cpu-8gb, 1.21.x, rootless)	11m 26s
test (actuated-arm64-6cpu-8gb, 1.21.x)	1m 48s
	2h 47m 19s

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