Add URL checker script and update workflow for provider URL validation

.github/workflows/check-urls.yml

@@ -0,0 +1,32 @@
+name: Check Provider URLs
+
+on:
+  schedule:
+    - cron: "0 0 * * *" # Run daily at midnight UTC
+  workflow_dispatch: # Allow manual triggering
+
+jobs:
+  check-urls:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "16"
+
+      - name: Install dependencies
+        run: npm install axios
+
+      - name: Run URL checker
+        run: node .github/scripts/url-checker.js
+
+      - name: Commit changes if any
+        run: |
+          git config --global user.name 'GitHub Action'
+          git config --global user.email 'action@github.com'
+          git add modflix.json
+          git diff --cached --quiet || git commit -m "Update provider URLs [skip ci]" && git push