fix(PortProxy): Adjust default timeout settings and enhance keep-alive connection handling in PortProxy.

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '3.28.5',
+  version: '3.28.6',
   description: 'A powerful proxy package that effectively handles high traffic, with features such as SSL/TLS support, port proxying, WebSocket handling, and dynamic routing with authentication options.'
 }