test: deflake test-http2-options-max-headers-block-length

The socket can be closed while data is still being written, causing an `ECONNRESET` error to be emitted on the client. Add a listener for it. PR-URL: #57959 Reviewed-By: LiviaMedeiros <livia@cirno.name> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

Author: lpinca

test/parallel/test-http2-options-max-headers-block-length.js

@@ -22,6 +22,8 @@ server.listen(0, common.mustCall(() => {
  const client = h2.connect(`http://localhost:${server.address().port}`,
  options);
 
+ client.on('error', () => {});
+
  const req = client.request();
  req.on('response', common.mustNotCall());