Update zizmorcore/zizmor-action action to v0.6.3

Author: renovate[bot]

.github/workflows/zizmor.yml

@@ -88,7 +88,7 @@ jobs:
           echo "Using the organisation zizmor policy from netresearch/.github@main."
 
       - name: Run zizmor
-        uses: zizmorcore/zizmor-action@3dc1ecc9bcb9e94e9b2c709687979e1298497054 # v0.6.2
+        uses: zizmorcore/zizmor-action@70fb788f84895a7701f5643d103d587e460b5c99 # v0.6.3
         with:
           inputs: ${{ inputs.inputs }}
           persona: ${{ inputs.persona }}