chore: Create renovate_config_check.yaml (#1920)

* chore: Create renovate_config_check.yaml

Author: ddixit14

synthtool/gcp/templates/java_library/.github/workflows/renovate_config_check.yaml

@@ -0,0 +1,25 @@
+name: Renovate Bot Config Validation
+
+on:
+ pull_request:
+ paths:
+ - 'renovate.json'
+
+jobs:
+ renovate_bot_config_validation:
+ runs-on: ubuntu-22.04
+
+ 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