add test process_oom_score_adj

[saku3]

This implements the process_oom_score_adj validation in #361 .

[YJDoc2]

Hey, there are several linting issues, you can check by running cargo clippy -- -D warnings and to fix formatting cargo fmt.

More importantly the test added in this PR is failing with error container stderr was not empty, found : Unexpected oom_score_adj, expected: 500 found: 500 Not sure why, there might be some spaces ? You can try adding .trim().

Also, would it be possible to set the oom score randomly, withing a range of say 300-700 ? You can check https://github.com/youki-dev/youki/pull/2978/files# to see how it is done there.

[saku3]

@YJDoc2 Thank you for the review!
I've fixed the code according to the comments.
I confirmed locally that running the just validate-contest-runc command results in process_oom_score_adj: ok.
Could you please check the code?

[YJDoc2]

Hey @saku3 Thanks for the quick update! So the oom test is now passing, but the formatting and linting still fails. Can you run cargo fmt and check just lint ?

Apart from that the PR looks good to me, so once that is fixed, I think this is good to merge. Thanks :)