async_hooks,http: set HTTPParser trigger to socket

This allows more easy tracking of where HTTP requests come from. Before
this change the HTTPParser would have the HTTPServer as the
triggerAsyncId.

The HTTPParser will still have the executionAsyncId set to the HTTP
Server so that information is still directly available. Indirectly, the
TCP socket itself also has its triggerAsyncId set to the TCP Server.

PR-URL: https://github.com/nodejs/node/pull/18003


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>