[ci] harden GitHub Actions: SHA-pin all uses + dependabot#248
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Pin every action in .github/workflows/ to a specific patch-release SHA with a tagged-version comment. Motivated by the May 2026 TanStack Mini Shai-Hulud npm worm, which propagated via stolen npm OIDC tokens after weaponizing floating tags in workflows holding credentials. Also: - Add github-actions ecosystem to .github/dependabot.yml (grouped) so the SHA pins don't bitrot. - Replace archived actions-rs/toolchain@v1 with dtolnay/rust-toolchain pinned to master SHA, toolchain: stable as input. - Add --ignore-scripts to npm ci in code-quality.yml as defense against postinstall-based typosquats (the secondary unscoped tanstack compromise). No functional changes to workflow logic; every SHA is the latest patch release within the major version already in use. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
haileyok
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a team,
EXBreder,
ayubun and
vinaysrao1
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Summary
Pin every action in
.github/workflows/to a specific patch-release SHA.Changes Made
actions/checkoutactions/setup-pythonactions/setup-nodeactions/cacheactions/upload-artifactactions/configure-pagesactions/upload-pages-artifactactions/deploy-pagesdocker/setup-buildx-actiondocker/login-actiondocker/metadata-actiondocker/build-push-actionastral-sh/setup-uvsoftprops/action-gh-releasedtolnay/rust-toolchain@masterSHA +toolchain: stableinput (no tagged releases on this action)Other changes bundled in:
.github/dependabot.yml: addedgithub-actionsecosystem (weekly, grouped into one consolidated bump PR) so SHA pins stay current.