[style bot] improve security for the stylebot. (#10908)

* improve security for the stylebot.

* ❌

.github/workflows/pr_style_bot.yml

@@ -64,18 +64,38 @@ jobs:
         run: |
           pip install .[quality]
 
-      - name: Download Makefile from main branch
+      - name: Download necessary files from main branch of Diffusers
         run: |
           curl -o main_Makefile https://raw.githubusercontent.com/huggingface/diffusers/main/Makefile
+          curl -o main_setup.py https://raw.githubusercontent.com/huggingface/diffusers/refs/heads/main/setup.py
+          curl -o main_check_doc_toc.py https://raw.githubusercontent.com/huggingface/diffusers/refs/heads/main/utils/check_doc_toc.py
         
-      - name: Compare Makefiles
+      - name: Compare the files and raise error if needed
         run: |
+          diff_failed=0
+
           if ! diff -q main_Makefile Makefile; then
             echo "Error: The Makefile has changed. Please ensure it matches the main branch."
+            diff_failed=1
+          fi
+
+          if ! diff -q main_setup.py setup.py; then
+            echo "Error: The setup.py has changed. Please ensure it matches the main branch."
+            diff_failed=1
+          fi
+
+          if ! diff -q main_check_doc_toc.py utils/check_doc_toc.py; then
+            echo "Error: The utils/check_doc_toc.py has changed. Please ensure it matches the main branch."
+            diff_failed=1
+          fi
+
+          if [ $diff_failed -eq 1 ]; then
+            echo "❌ Error happened as we detected changes in the files that should not be changed ❌"
             exit 1
           fi
-          echo "No changes in Makefile. Proceeding..."
-          rm -rf main_Makefile
+
+          echo "No changes in the files. Proceeding..."
+          rm -rf main_Makefile main_setup.py main_check_doc_toc.py
 
       - name: Run make style and make quality
         run: |