chore(deps): update step-security/harden-runner action to v2.6.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
step-security/harden-runner	action	patch	v2.6.0 -> v2.6.1

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Release Notes

step-security/harden-runner (step-security/harden-runner)

### [`v2.6.1`](https://togithub.com/step-security/harden-runner/releases/tag/v2.6.1) [Compare Source](https://togithub.com/step-security/harden-runner/compare/v2.6.0...v2.6.1) ##### What's Changed Release v2.6.1 by [@​varunsh-coder](https://togithub.com/varunsh-coder) and [@​h0x0er](https://togithub.com/h0x0er) in [https://github.com/step-security/harden-runner/pull/356](https://togithub.com/step-security/harden-runner/pull/356) This release: 1. Improves the job summary markdown written by the Harden-Runner Action 2. Improves detection of cache endpoint used by the job 3. Detects use of Kubernetes mode in Actions Runner Controller (ARC) based runners 4. Updates dependencies **Full Changelog**: https://github.com/step-security/harden-runner/compare/v2...v2.6.1

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Configuration

📅 Schedule: Branch creation - "after 10:30 before 18:00 every weekday except after 13:00 before 14:00" in timezone Europe/Berlin, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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