build(deps): Bump step-security/harden-runner from 2.19.3 to 2.19.4

[dependabot]

Bumps step-security/harden-runner from 2.19.3 to 2.19.4.

Release notes

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

v2.19.4

What's Changed

• Improvements for HTTPS Monitoring for the Enterprise tier of Harden Runner

Full Changelog: step-security/harden-runner@v2.19.3...v2.19.4

Commits

• 9af89fc Merge pull request #667 from step-security/update-agent-v1.8.6
• 485dce8 Update agent to v1.8.6
• See full diff in compare view

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[github-actions]

PR: #4151
Mode: squash
Topic: GH-csit-4151
Change-Ids:
Ieb4320a02cae0ec63ef0f3e6fe4df1aae2176cb2
Digest: 0b8d5ed477ea
GitHub-Hash: 64dceddd6b6fc435

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/+/45885

[github-actions]

Auto-closing pull request

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.