Update .github/workflows/validate-conventional-commits.yaml

Co-authored-by: Roger Barker <roger.barker@swirldslabs.com>
Signed-off-by: Andrew Brandt <andrew.brandt@hashgraph.com>

Author: andrewb1269

.github/workflows/validate-conventional-commits.yaml

@@ -16,6 +16,11 @@ jobs:
   validate-pr-title:
     runs-on: ubuntu-latest
     steps:
+     - name: Harden Runner
+        uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
+        with:
+          egress-policy: audit
+          
       - name: PR Conventional Commit Validation
         uses:  ytanikin/pr-conventional-commits@8267db1bacc237419f9ed0228bb9d94e94271a1d # v1.4.1
         with: