Update rinchsan/renovate-config-validator action to v0.0.12 (#405)

Signed-off-by: Renovate Bot <bot@renovateapp.com>

Signed-off-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/renovate-config-validator.yml

@@ -13,4 +13,4 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Validate
-        uses: rinchsan/renovate-config-validator@v0.0.11
+        uses: rinchsan/renovate-config-validator@v0.0.12