Bump step-security/harden-runner from 2.6.0 to 2.6.1

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](step-security/harden-runner@v2.6.0...eb238b5)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/klee.yaml

@@ -51,7 +51,7 @@ jobs:
           sudo apt-get install -y nodejs
 
       - name: Harden Runner
-        uses: step-security/harden-runner@1b05615854632b887b69ae1be8cbefe72d3ae423 # v2.6.0
+        uses: step-security/harden-runner@eb238b55efaa70779f274895e782ed17c84f2895 # v2.6.1
         with:
           egress-policy: audit