chore(deps): bump zgosalvez/github-actions-ensure-sha-pinned-actions from 3.0.18 to 3.0.20 (#5977)

Author: dependabot[bot]

.github/workflows/secure_workflows.yml

@@ -32,7 +32,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
       - name: Ensure 3rd party workflows have SHA pinned
-        uses: zgosalvez/github-actions-ensure-sha-pinned-actions@64418826697dcd77c93a8e4a1f7601a1942e57b5 # v3.0.18
+        uses: zgosalvez/github-actions-ensure-sha-pinned-actions@c3a2b64f69b7a1542a68f44d9edbd9ec3fc1455e # v3.0.20
         with:
           allowlist: |
             slsa-framework/slsa-github-generator