Pin all GitHub Actions to commit SHAs#85
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Replace movable-tag refs (`uses: owner/repo@vX`) with immutable commit SHAs plus a trailing `# vX` comment in every workflow under .github/workflows/. This matches the style established by PR #83 for pypa/gh-action-pypi-publish and protects against tag-tampering supply-chain attacks: if a tag is force-moved by a compromised maintainer account, CI would silently execute new code with the workflow's permissions; a pinned SHA cannot be repointed. Also extend renovate.json with the `helpers:pinGitHubActionDigests` preset so any future tag-only `uses:` line is auto-pinned by Renovate. No version changes — every SHA resolves to the same commit the tag already pointed to.
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Replace movable-tag refs (
uses: owner/repo@vX) with immutable commit SHAs plus a trailing# vXcomment in every workflow under .github/workflows/. This matches the style established by PR #83 for pypa/gh-action-pypi-publish and protects against tag-tampering supply-chain attacks: if a tag is force-moved by a compromised maintainer account, CI would silently execute new code with the workflow's permissions; a pinned SHA cannot be repointed.Also extend renovate.json with the
helpers:pinGitHubActionDigestspreset so any future tag-onlyuses:line is auto-pinned by Renovate.No version changes — every SHA resolves to the same commit the tag already pointed to.