[StepSecurity] ci: Harden GitHub Actions

[step-security-bot]

Summary

This pull request is created by StepSecurity at the request of @artemgavrilov. Please merge the Pull Request to incorporate the requested changes. Please tag @artemgavrilov on your message if you have any questions related to the PR.

Security Fixes

Least Privileged GitHub Actions Token Permissions

The GITHUB_TOKEN is an automatically generated secret to make authenticated calls to the GitHub API. GitHub recommends setting minimum token permissions for the GITHUB_TOKEN.

• GitHub Security Guide
• The Open Source Security Foundation (OpenSSF) Security Guide

Pinned Dependencies

GitHub Action tags and Docker tags are mutable. This poses a security risk. GitHub's Security Hardening guide recommends pinning actions to full length commit.

• GitHub Security Guide
• The Open Source Security Foundation (OpenSSF) Security Guide

Feedback

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Signed-off-by: StepSecurity Bot bot@stepsecurity.io

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