Update zizmorcore/zizmor-action action to v0.6.3 (#396)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[zizmorcore/zizmor-action](https://redirect.github.com/zizmorcore/zizmor-action)
| action | patch | `v0.6.2` → `v0.6.3` |

---

### Release Notes

<details>
<summary>zizmorcore/zizmor-action (zizmorcore/zizmor-action)</summary>

###
[`v0.6.3`](https://redirect.github.com/zizmorcore/zizmor-action/releases/tag/v0.6.3)

[Compare
Source](https://redirect.github.com/zizmorcore/zizmor-action/compare/v0.6.2...v0.6.3)

zizmor 1.30.0 is now the default version.

Release notes: <https://docs.zizmor.sh/release-notes/#&#8203;1300>

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
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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 }}