fixup! debugger: fix event listener leak in the run command

Co-authored-by: Luigi Pinca <luigipinca@gmail.com>

Author: joyeecheung

lib/internal/debugger/inspect_client.js

@@ -356,8 +356,8 @@ class Client extends EventEmitter {
         tearDown();
         resolve();
       };
-      this.once('error', onError);
-      this.once('ready', onReady);
+      this.on('error', onError);
+      this.on('ready', onReady);
 
       httpReq.on('upgrade', handshakeListener);
       httpReq.end();