Pin actions to a full length commit SHA

[naveensrinivasan]

• Pinned actions by SHA https://github.com/ossf/scorecard/blob/main/docs/checks.md#pinned-dependencies

Pin actions to a full length commit SHA

Pinning an action to a full length commit SHA is currently the only way to use an action as an immutable release. Pinning to a particular SHA helps mitigate the risk of a bad actor adding a backdoor to the action's repository, as they would need to generate a SHA-1 collision for a valid Git object payload.

https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions

How do I validate these pinned actions?

Also, dependabot supports upgrading based on SHA. ossf/scorecard#1700

Signed-off-by: naveensrinivasan 172697+naveensrinivasan@users.noreply.github.com

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[AbdelrahmanHafez]

LGTM, thanks 👍

[vkarpov15]

Thanks 👍 I updated the comments because the sha hash for setup-node is technically for the v3.1.0 tag, not v3. Otherwise no concerns, thanks for your contribution!