feat(ci): add telegram failure notification to forgejo actions workflow

.forgejo/workflows/deploy.yml

@@ -34,3 +34,15 @@ jobs:
             docker image prune -f
 
             echo "Deployment completed successfully."
+
+      - name: Send Telegram notification on failure
+        if: failure()
+        uses: appleboy/telegram-action@master
+        with:
+          to: ${{ secrets.TELEGRAM_CHAT_ID }}
+          token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          message: |
+            ❌ Deployment Failed!
+            Repository: ${{ github.repository }}
+            Commit: ${{ github.sha }}
+            Workflow: ${{ github.workflow }}