Bump step-security/harden-runner from 2.11.1 to 2.12.0

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.11.1 to 2.12.0.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/c6295a65d1254861815972266d5933fd6e532bdf...0634a2670c59f64b4a01f0f96f84700a4088b9f0

)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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