add test process_oom_score_adj #2268

Job	Run time
youki-build (x86_64, gnu)	1m 55s
youki-build (x86_64, musl)	1m 58s
youki-build (aarch64, gnu)	1m 54s
youki-build (aarch64, musl)	2m 15s
k8s-tests (x86_64, gnu)	1m 19s
oci-validation-rust (x86_64, gnu)	2m 51s
oci-validation-go (x86_64, gnu)	1m 57s
docker-in-docker (ubuntu-22.04)	19s
oci-validation-rust (x86_64, musl)	2m 49s
oci-validation-go (x86_64, musl)	2m 18s
k8s-tests (x86_64, musl)	1m 28s
docker-in-docker (ubuntu-20.04)	12s
rootless-podman-test (x86_64, gnu)	44s
containerd-integration-tests (x86_64, gnu)	4m 38s
rootless-podman-test (x86_64, musl)	57s
containerd-integration-tests (x86_64, musl)	4m 50s
	32m 24s

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