fix v2 hardening review findings

.github/workflows/deployment-docs.yml

@@ -45,6 +45,8 @@ jobs:
       digest: ${{ steps.build.outputs.digest }}
     steps:
       - uses: actions/checkout@v7
+        with:
+          persist-credentials: false
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v4