feat: update merge PR's script

.github/workflows/build-toc.yaml

@@ -1,9 +1,6 @@
 name: Generate TOC on PR Merge
 
 on:
-  push:
-    branches:
-      - main
   pull_request:
     types: [closed]
     branches:
@@ -17,10 +14,15 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Set up Python 3
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.x'
+
       - name: Run TOC generation script
         run: |
-          chmod +x generate_toc_for_readme.sh
-          ./generate_toc_for_readme.sh
+          chmod +x .script/idxtool.sh
+          python3 .script/idxtool.sh --toc
 
       - name: Commit TOC updates
         run: |