Bump step-security/harden-runner from 2.17.0 to 2.19.0 (#5147)

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.17.0 to 2.19.0.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/f808768d1510423e83855289c910610ca9b43176...8d3c67de8e2fe68ef647c8db1e6a09f647780f40)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>