Bump step-security/harden-runner from 2.17.0 to 2.18.0

[dependabot]

Bumps step-security/harden-runner from 2.17.0 to 2.18.0.

Release notes

Sourced from step-security/harden-runner's releases.

v2.18.0

What's Changed

Global Block List: During supply chain incidents like the recent axios and trivy compromises, StepSecurity will add known malicious domains and IP addresses (IOCs) to a global block list. These will be automatically blocked, even in audit mode, providing immediate protection without requiring any workflow changes.

Deploy on Self-Hosted VM: Added deploy-on-self-hosted-vm input that allows the Harden Runner agent to be installed directly on ephemeral self-hosted Linux runner VMs at workflow runtime. This is intended as an alternative when baking the agent into the VM image is not possible.

Full Changelog: step-security/harden-runner@v2.17.0...v2.18.0

Commits

• 6c3c2f2 Feature/deploy on self hosted vm (#658)
• See full diff in compare view

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Note

Low Risk
Low risk workflow-only change that updates the pinned step-security/harden-runner action version; the main risk is CI behavior changes if the new action version affects network hardening.

Overview
Updates GitHub Actions workflows to use step-security/harden-runner v2.18.0 (new pinned commit) across coverage, CodeQL, unit test matrix, and golangci-lint runs.

No application code changes; this only adjusts CI runner hardening behavior via the action upgrade.

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