feat: ws connection support https redirects before upgrade

Signed-off-by: Eugene Zheng <hsxfjames@gmail.com>

Author: hsxfjames

lib/agent.js

@@ -102,7 +102,10 @@ class XtransitAgent extends EventEmitter {
     const server = await this.lookup(this.server);
 
     logger.info(`websocket client connecting to ${server}...`);
-    const conn = new WebSocket(server);
+    const conn = new WebSocket(server, {
+      followRedirects: true,
+      maxRedirects: 3,
+    });
 
     conn.on('message', message => {
       messageHandler.call(this, message);