build(deps): Bump step-security/harden-runner from 2.17.0 to 2.19.0

[dependabot]

Bumps step-security/harden-runner from 2.17.0 to 2.19.0.

Release notes

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

v2.19.0

What's Changed

New Runner Support

Harden-Runner now supports Depot, Blacksmith, Namespace, and WarpBuild runners with the same egress monitoring, runtime monitoring, and policy enforcement available on GitHub-hosted runners.

Automated Incident Response for Supply Chain Attacks

• Global block list: Outbound connections to known malicious domains and IPs are now blocked even in audit mode.
• System-defined detection rules: Harden-Runner will trigger lockdown mode when a high risk event is detected during an active supply chain attack (for example, a process reading the memory of the runner worker process, a common technique for stealing GitHub Actions secrets).

Bug Fixes

Windows and macOS: stability and reliability fixes

Full Changelog: step-security/harden-runner@v2.18.0...v2.19.0

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

• 8d3c67d Release v2.19.0 (#661)
• 6c3c2f2 Feature/deploy on self hosted vm (#658)
• See full diff in compare view

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[github-actions]

PR: #4146
Mode: squash
Topic: GH-csit-4146
Change-Ids:
I5c6cadf17eb26f56181cc10b0c3bdc4c31cfb0cb
Digest: af633be1783c
GitHub-Hash: bd5c606d431b7287

Note: This metadata is also included in the Gerrit commit message for reconciliation.

[github-actions]

Change raised in Gerrit by GitHub2Gerrit: https://gerrit.fd.io/r/c/csit/+/45631

[github-actions]

Auto-closing pull request

[dependabot]

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