chore(deps): update step-security/harden-runner digest to 4d991eb

Author: renovate[bot]

.github/workflows/codeql.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@cb605e52c26070c328afc4562f0b4ada7618a84e
+        uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481
         with:
           egress-policy: audit