chore: renovate bot config validation (#2404)

* chore: add renovate bot config validation workflow.

.github/workflows/renovate_config_check.yaml

@@ -0,0 +1,25 @@
+name: Renovate Bot Config Validation
+
+on:
+  pull_request:
+    paths:
+    - 'renovate.json'
+
+jobs:
+  config_validation:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '20'
+
+    - name: Install Renovate and Config Validator
+      run: |
+        npm install -g npm@latest
+        npm install --global renovate
+        renovate-config-validator