fix: Resolve the incompatibility issues with script updates.

install/DockerProxy_Install.sh

@@ -2538,6 +2538,10 @@ INSTALL_OR_UPDATE_CMD() {
         else
             WARN "正在进行脚本更新,请稍等..."
         fi
+        
+        if [ -f "$TARGET_PATH" ]; then
+            rm -f "$TARGET_PATH" &>/dev/null
+        fi
         wget -q -O "$TARGET_PATH" "$DOWNLOAD_URL" &>/dev/null
         if [ $? -eq 0 ]; then
             success=true