chore(deps): update suzuki-shunsuke/github-action-renovate-config-validator digest to ca480cb (#256)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[suzuki-shunsuke/github-action-renovate-config-validator](https://redirect.github.com/suzuki-shunsuke/github-action-renovate-config-validator)
([changelog](https://redirect.github.com/suzuki-shunsuke/github-action-renovate-config-validator/compare/fda7db3799c8b28652153419da38c22fe8283667..ca480cb7ec89a9e1cd8c214ad33bda1617184027))
| action | digest | `fda7db3` → `ca480cb` |

---

### Configuration

📅 **Schedule**: 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

---

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View the [repository job
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.github/workflows/renovate-config-validator.yml

@@ -14,6 +14,6 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
-      - uses: suzuki-shunsuke/github-action-renovate-config-validator@fda7db3799c8b28652153419da38c22fe8283667 # v2.0.0
+      - uses: suzuki-shunsuke/github-action-renovate-config-validator@ca480cb7ec89a9e1cd8c214ad33bda1617184027 # v2.0.0
         with:
           strict: false