ci: pin all GitHub Actions to commit SHAs - #83
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Tags are mutable; a maintainer (or an attacker with maintainer access) can retag an existing version to point at new code without the consumer's workflow file changing. Pinning to a full 40-char commit SHA makes the referenced code immutable while a trailing "# vX.Y.Z" comment keeps the human-readable version visible and lets Dependabot (already configured for github-actions in .github/dependabot.yml) open PRs updating both the SHA and the version comment together when a new release ships. Covers all 19 action use-sites across ci.yml, deploy-docs.yml, and release.yml. Verified every SHA against the action repo's own tag ref before committing. Refs: https://docs.github.com/actions/security-for-github-actions/security-guides/security-hardening-for-github-actions#using-third-party-actions
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Summary
Pin every external action in CI, documentation deployment and release workflows to a verified full commit SHA. This includes the updated action versions from #117 and the Tasksmith jobs added since this PR was opened. Keep version comments so Dependabot can maintain the pins.
Disable uv dependency caches throughout the release workflow, including manual release runs. This preserves setup-uv v10's protection for publishing jobs instead of overriding it with
enable-cache: true.Test plan
b07a52f: Python 3.12/3.13/3.14, recipe and coding-runtime contracts, lint, documentation, and distribution build.actionlintpassed.Out of scope
No package version change, release publication or dataset changes.