fix automatic submodule updates

.github/workflows/update_submodules.yml

@@ -8,17 +8,37 @@ on:
 jobs:
   update:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
     steps:
-      - uses: actions/checkout@v3
+      - name: Checkout repository
+        uses: actions/checkout@v4
         with:
           submodules: recursive
           token: ${{ secrets.PAT }}
+          fetch-depth: 0
 
       - name: Update submodules
         run: |
-          git config --global user.name 'GitHub Action'
-          git config --global user.email '[email protected]'
+          git config --global user.name 'github-actions[bot]'
+          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+
+          # update submodules
           git submodule update --remote --recursive
+
+          # check if there are changes
+          if git diff --cached --quiet && git diff --quiet; then
+            echo "No updates found in submodules"
+            exit 0
+          fi
+
+          # commit and push changes
           git add .
-          git diff --cached --quiet || git commit -m "action: update submodules"
+          git commit -m "update submodules [skip ci]"
           git push
+
+      - name: Check for errors
+        if: failure()
+        run: |
+          echo "::error::Failed to update submodules. Please check the logs above for details."