fix(update-example-gallery): resolve create-pr failure issue

.github/workflows/update-example-gallery.yml

@@ -1,9 +1,9 @@
-name: Update example gallery # Updates examples twice a month
+name: Update example gallery # Updates examples once a month
 
 on:
   workflow_dispatch:
   schedule:
-    - cron: '0 4 8,22 * *' # Updates will happen every 8th/22nd of the month
+    - cron: '0 0 15 * *' # At 12:00 AM, on day 15 of the month
 
 jobs:
   check_gallery:
@@ -42,8 +42,17 @@ jobs:
             exit 0
           fi
 
+      - name: Commit the changes
+        if: failure() && steps.up_to_date.outcome == 'failure'
+        id: commit_chagnes
+        run: |
+          git config --global user.email ${{ secrets.CARBON_BOT_EMAIL }}
+          git config --global user.name ${{ secrets.CARBON_BOT_NAME }}
+          git add .
+          git commit -m "chore: update examples gallery"
+
       - name: Create pull request
-        if: steps.up_to_date.outcome == 'failure'
+        if: failure() && steps.up_to_date.outcome == 'failure'
         id: create-pr
         uses: peter-evans/create-pull-request@v4
         with: