优化 Docker 镜像构建过程，增加重试机制以提高构建稳定性

.gitea/workflows/push.yml

@@ -27,7 +27,19 @@ jobs:
           docker rmi $IMAGE_NAME || true
 
       - name: Build new image
-        run: docker build -t $IMAGE_NAME .
+        run: |
+          RETRIES=3
+          DELAY=10
+          count=0
+          until docker build -t $IMAGE_NAME .; do
+            count=$((count+1))
+            if [ $count -ge $RETRIES ]; then
+              echo "Build failed after $RETRIES attempts"
+              exit 1
+            fi
+            echo "Build failed. Retrying in $DELAY seconds... ($count/$RETRIES)"
+            sleep $DELAY
+          done
 
   deploy:
     name: Deploy to Production