fix(tls-handshake): Set certificate_expired TLS alert level to warning instead of fatal to allow graceful termination.

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartproxy',
-  version: '4.1.12',
+  version: '4.1.13',
   description: 'A powerful proxy package that effectively handles high traffic, with features such as SSL/TLS support, port proxying, WebSocket handling, dynamic routing with authentication options, and automatic ACME certificate management.'
 }

ts/classes.pp.connectionhandler.ts

@@ -611,7 +611,7 @@ export class ConnectionHandler {
               0x03, // TLS 1.2 version
               0x00,
               0x02, // Length
-              0x02, // Fatal alert level (2)
+              0x01, // Warning alert level (1)
               0x2F, // certificate_expired alert (47)
             ]);