gha: bump step-security/harden-runner from 2.6.0 to 2.6.1 (#2551)
Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/1b05615854632b887b69ae1be8cbefe72d3ae423...eb238b55efaa70779f274895e782ed17c84f2895)
---
updated-dependencies:
- dependency-name: step-security/harden-runner
dependency-type: direct:production
update-type: version-update:semver-patch
...
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