meta: security hardening for github actions #52927
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I understand that the CI system has recently been updated to mandate an approving review for code safety. Some verification can be automated, hence this PR.
From my security research in many github repos, I've noticed that certain variables are frequently overlooked. This PR veirifies that said variables don't contain malicious content. While I don't think any of these insecure variables are used in the Node.js ecosystem insecurely, I still think it's safe to verify that they don't contain malicious content, as a pre-emptive measure.
Currently,
<
>
'
"
&
;
{
}
are all considered 'unsafe' if they are in a branch name (base/head), commiter email, commiter repo name, or commiter user name@nodejs/actions
@nodejs/security-wg