http: add rawPacket in err of `clientError` event

The `rawPacket` is the current buffer that just parsed. Adding this
buffer to the error object of `clientError` event is to make it possible
that developers can log the broken packet.

PR-URL: https://github.com/nodejs/node/pull/17672
Backport-PR-URL: https://github.com/nodejs/node/pull/18370


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>