chore(deps): update rinchsan/renovate-config-validator action to v0.2.1

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/validate-renovate.yml

@@ -15,6 +15,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Validate
-        uses: rinchsan/renovate-config-validator@v0.2.0
+        uses: rinchsan/renovate-config-validator@v0.2.1
         with:
           pattern: '*.json5'