fix(codeql): isolate persistent runner checkout - #80
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Signed-off-by: rldyourmnd <danil@nddev.it.com>
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Summary
GIT_CONFIG_GLOBALbefore reusable CodeQL checkoutThreat model
A persistent self-hosted runner may carry an ambient global GitHub Authorization header.
actions/checkoutadds its scoped token, and Git then sends duplicate Authorization headers. The reusable now selects a job-unique owner-only global Git config before checkout without reading or mutating runner-owned config.Validation
python3 scripts/validate_all.pyactionlintuvx zizmor@1.26.1 --persona regular --min-severity low .github/workflowsgit diff --checkThe public repository's self-workflows explicitly remain on
ubuntu-latest; no private runner is selected by this PR.