utils: switch to securejoin.MkdirAllHandle #6503

Job	Run time
cross-i386	1m 56s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 15s
cross-i386 (runc_nodmz)	1m 38s
test (ubuntu-20.04, 1.22.x, rootless)	6m 56s
test (ubuntu-20.04, 1.22.x, -race)	8m 38s
test (ubuntu-20.04, 1.22.x)	7m 10s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 11s
test (ubuntu-20.04, 1.23.x, rootless)	6m 59s
test (ubuntu-20.04, 1.23.x, -race)	8m 28s
test (ubuntu-20.04, 1.23.x)	7m 34s
test (ubuntu-20.04, 1.23.x, criu-dev)	8m 12s
test (ubuntu-24.04, 1.22.x, rootless, -race)	8m 58s
test (ubuntu-24.04, 1.22.x, rootless)	9m 6s
test (ubuntu-24.04, 1.22.x, -race)	8m 8s
test (ubuntu-24.04, 1.22.x)	7m 13s
test (ubuntu-24.04, 1.23.x, rootless, -race)	9m 43s
test (ubuntu-24.04, 1.23.x, rootless)	9m 24s
test (ubuntu-24.04, 1.23.x, -race)	8m 16s
test (ubuntu-24.04, 1.23.x)	7m 31s
test (ubuntu-24.04, 1.23.x, runc_nodmz)	7m 33s
test (ubuntu-24.04, 1.23.x, criu-dev)	7m 58s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 32s
test (actuated-arm64-6cpu-8gb, 1.23.x)	8m 39s
all-done	1s
	2h 55m 59s

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