ci: pin mutable action tags in the workflows this fork actually runs#16
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Eight uses: references in the three workflows that genuinely run here pointed at mutable tags, which CodeQL reports as actions/unpinned-tag. A tag can be moved to a different commit by its owner at any time, so a tag pin is not a pin. That risk is not hypothetical here: actions/checkout@v7 currently resolves to 3d3c42e5, while the rest of the estate pins 9c091bb (v7.0.0). The tag moved. These now pin the same commit the estate already vetted rather than whatever v7 points at today. Scope is deliberately limited to branch-cleaner, code-quality and pr-title — the three files verified to run in this fork. The inherited release and nightly workflows are left alone: they require secrets this repository does not have (gh secret list returns zero), so pinning them would be churn on code that cannot execute. They need a quarantine decision, not a pin.
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Eight
uses:references pointed at mutable tags — CodeQL'sactions/unpinned-tag. A tag can be repointed by its owner at any time, so a tag is not a pin.The risk is concrete here.
actions/checkout@v7resolves today to3d3c42e5, while the rest of the estate pins9c091bb(v7.0.0). The tag already moved.branch-cleaner.ymlcode-quality.ymlpr-title.ymlNo mutable
uses:remains in those three files.actionlintclean.Scope is deliberately narrow: these are the workflows verified to actually run in this fork. The inherited upstream release and nightly workflows are untouched —
gh secret listreturns zero secrets here and eleven of them require credentials that cannot exist, so pinning code that cannot execute would be churn. Upstream owns that surface.