Disable criu support on riscv64 #2816

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Job	Run time
shellcheck	41s
Test (disable-systemd)	1m 1s
Build on armv7	9m 11s
Test (check)	2m 2s
Build on aarch64	25m 2s
Test (podman)	22m 58s
Build on s390x	8m 7s
Test (containerd)	6m 21s
Build on ppc64le	9m 41s
Test (oci-validation)	2m 26s
Build on riscv64	8m 4s
Test (alpine-build)	51s
Test (centos8-build)	1m 44s
Test (centos9-build)	1m 56s
Test (clang-format)	1m 10s
Test (clang-check)	3m 36s
Test (checkpoint-restore)	1m 14s
Test (fuzzing)	7m 20s
Test (codespell)	31s
Test (wasmedge-build)	2m 6s
	1h 56m 2s