Add `runc_nocriu` build tag to opt out of c/r #7092

Job	Run time
cross-i386	1m 5s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 9s
test (ubuntu-20.04, 1.22.x, rootless)	6m 57s
test (ubuntu-20.04, 1.22.x, -race)	7m 44s
test (ubuntu-20.04, 1.22.x)	7m 5s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 16s
test (ubuntu-20.04, 1.23.x, rootless)	6m 59s
test (ubuntu-20.04, 1.23.x, -race)	7m 51s
test (ubuntu-20.04, 1.23.x)	7m 24s
test (ubuntu-20.04, 1.23.x, criu-dev)	7m 37s
test (ubuntu-24.04, 1.22.x, rootless, -race)	9m 46s
test (ubuntu-24.04, 1.22.x, rootless)	9m 29s
test (ubuntu-24.04, 1.22.x, -race)	7m 39s
test (ubuntu-24.04, 1.22.x)	6m 44s
test (ubuntu-24.04, 1.23.x, rootless, -race)	9m 55s
test (ubuntu-24.04, 1.23.x, rootless)	10m 6s
test (ubuntu-24.04, 1.23.x, -race)	8m 19s
test (ubuntu-24.04, 1.23.x)	7m 43s
test (ubuntu-24.04, 1.23.x, criu-dev)	7m 59s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 36s
test (actuated-arm64-6cpu-8gb, 1.23.x)	7m 50s
all-done	1s
	2h 44m 14s

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