[StepSecurity] Apply security best practices

[stepsecurity-app]

Summary

This pull request has been generated by StepSecurity as part of your enterprise subscription to ensure compliance with recommended security best practices. Please review and merge the pull request to apply these security enhancements.

Security Fixes

Recommended GitHub Actions Workflows

These workflows are part of the organization's recommended set and were previously missing from this repository.

Feedback

For bug reports, feature requests, and general feedback; please create an issue in step-security/secure-repo or contact us via our website.

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Summary by cubic

Adds the organization's recommended security workflows that were previously missing from this repository.

Adds six new workflows: dependency review, PR and full-branch OSV vulnerability scanning, a scanner smoke test, repo lint and format checks, and OpenSSF Scorecard supply-chain analysis. Once merged, these run automatically on matching PRs and pushes.

Security practices

• Pins all third-party actions to commit SHAs.
• Runs step-security/harden-runner with an audit egress policy in every workflow.
• Defaults to contents: read permissions and only grants additional scopes where required.
• Uploads SARIF results to GitHub code scanning where available.

^{Written for commit 10ee0cd. Summary will update on new commits.}

[github-advanced-security]

You are seeing this message because GitHub Code Scanning has recently been set up for this repository, or this pull request contains the workflow file for the Code Scanning tool.

What Enabling Code Scanning Means:

• The 'Security' tab will display more code scanning analysis results (e.g., for the default branch).
• Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results.
• You will be able to see the analysis results for the pull request's branch on this overview once the scans have completed and the checks have passed.

For more information about GitHub Code Scanning, check out the documentation.